The complaint came from a rival , and the maths did the rest
A mattress brand advertised its lowest prices ever and saved up to 65%. One competitor read the small print, did the arithmetic, and filed. The regulator agreed, and the reasoning is reusable by anyone who has ever written the words up to.
What the asa ruling actually found#
The fox does not argue with the hedgerow. It reads it, works out where the gap is, and goes through. Anyone writing sale copy this autumn should read this ruling the same way, because the gap in it is one almost every retailer walks past.
On 12 August 2026 the Advertising Standards Authority upheld a complaint about the Nectar Sleep homepage. The ad, seen on 23 January 2026, read: "THE NECTAR PRICE DROP IS HERE. Our lowest prices ever. Save up to 65%". Underneath, in small print, sat the qualifier "Savings compared to Similar Brands Avg Prices".
That qualifier is the whole case. The ASA ruling found consumers would read "save up to 65%" as a saving against Nectar's own usual prices, particularly sitting beside "price drop" and "our lowest prices ever". The comparison was actually against an average of selected competitors.
Read the misleading advertising finding closely and it is not really about mattresses at all. It is about where a qualifier sits on a page, and that is a question every brand in every category answers a dozen times a season without thinking about it.
Three things went wrong at once#
The regulator identified a stack of problems rather than a single error, which is why the finding is so reusable. The comparison basket was small, drawn from selected competitors rather than the market. The averaging method made it difficult for a consumer to compare anything directly.
And the headline figure was unreachable for most of the range: only memory foam mattresses reached 65%, while other products offered considerably less. Nectar accepted the 65% had been published "due to an administrative error" and that it had meant to claim up to 45%.
The outcome was blunt. The ad "must not appear again in the form complained of", and Nectar was told to ensure future savings claims are not misleading, to make the basis of savings clear, and to base competitor comparisons on prices actually available.
The three cap code rules behind this misleading advertising case#
Three misleading advertising rules were cited, and reading them in the regulator's own words is more useful than any summary, because each one catches a different failure. They come from section 3 of the non-broadcast code, the misleading advertising section.
Rule 3.1 is the general one, and it is one sentence: "Marketing communications must not materially mislead or be likely to do so." Note "or be likely to". No consumer needs to have been misled for the rule to bite.
Rule 3.7 is the one that decides most cases before they start. Per the CAP Code, marketers must hold documentary evidence "before distributing or submitting a marketing communication for publication", and "the ASA may regard claims as misleading in the absence of adequate substantiation".
| Rule | What it says | What it catches in practice |
|---|---|---|
| 3.1 Misleading | "Must not materially mislead or be likely to do so" | The overall impression, not the literal wording |
| 3.7 Substantiation | Documentary evidence must be held before publication | Claims assembled after a challenge arrives |
| 3.22 Price claims | "Up to" and "from" claims must not exaggerate availability or amount | Headline figures reachable on only part of the range |
Rule 3.22 deserves reading twice by anyone doing price comparison advertising: "Price claims such as 'up to' and 'from' must not mislead by exaggerating the availability or amount of benefits likely to be obtained by the consumer."
Availability and amount. Both. A 65% saving that exists on one product line in a range fails the availability half even if the arithmetic on that one line is perfect. That is the trap, and it is set for every retailer who lets the best case become the headline.
An up to claim is a promise about the whole range, made in the voice of its best-performing corner.
Who is checking your claims now#
Here is the structural change in misleading advertising enforcement worth taking to a marketing director. The complaint did not come from a consumer, a journalist or the regulator's own monitoring. It came from Simba Sleep Ltd, a direct competitor in the same category.
A misleading advertising complaint used to arrive from a member of the public who felt short-changed. That trail has changed direction entirely, and the new one starts inside a rival's marketing department with access to your price list.
Rivals have the motive, the category knowledge and the pricing data to test a savings claim properly. A consumer sees a headline. A competitor knows exactly which products in your range actually reach 65% and can put the working in front of a regulator without hiring anyone.
That chain has grown at every link this month. The ASA alone upheld five complaints on 12 August, and the spread of failure modes is instructive: alongside Nectar's savings claim sat a betting app whose ads "portrayed gambling behaviour that could lead to financial, social or emotional harm", and a practitioner who claimed a professional-body membership he did not hold, per the ASA rulings index.
Five upheld in a single day#
That is the failure mode nobody reviews for, because legal reads the words and the studio approves the shot, and the two reviews happen in different meetings. A claim can live entirely in an image.
Three of those five turned on how a claim was framed rather than on an outright falsehood. That is the pattern worth briefing into a creative team: most upheld complaints are not lies, they are true statements arranged so a reasonable consumer reads something else.
It is also why a legal read of the copy alone keeps missing them. Somebody has to look at the finished asset, in the placement a customer sees it, and ask what impression it leaves rather than whether each clause is defensible in isolation.
Platforms are the newest link and the least discussed. Apple's advertising policies restrict whole categories outright, and Google requires gambling advertisers to "apply for certification" and to run a responsible gambling landing page under its gambling and games policy. Those rules bite before a regulator ever sees the ad.
Statutory regulators complete the set, and their remedies are larger. The US Federal Trade Commission has been distributing more than $23.8 million to drivers and diners over Grubhub's advertising claims, as TechCrunch reported on 12 August, with roughly 640,000 payments averaging about $37.
The harder failure: a real number in the wrong place#
Invented figures are the easy kind of misleading advertising to catch. The failure that survives review is a genuine number quietly attached to the wrong product, because everybody checking can find it on a real page and stops looking.
A live example turned up while we were reporting a separate story this week. Trade coverage of Zilch's new Pay Monthly product gave it a representative APR of 14.9%. The figure is real and it is Zilch's own: Zilch's homepage carries "From 14.9% APR Representative" for credit from GBP50 to GBP4500.
But that is a product-wide representative APR, not a Pay Monthly rate. Zilch's own Pay Monthly documentation publishes monthly fees of 0% to 1.8% instead. Same brand, same site, different product, and a number that travels between them without anyone noticing.
True of the brand, false of the product
Zilch's new Pay Monthly product carries a representative APR of 14.9%, spreading purchases over three, six or twelve months.
Number attached to what it describes
Zilch advertises a representative APR from 14.9% across its credit product. For Pay Monthly specifically it publishes monthly fees of 0% to 1.8%, on a minimum purchase of GBP75.
Nectar's misleading advertising failure was the same species. "Save up to 65%" was arithmetically true somewhere in the range, against some basket, on some products. It was the attachment that failed, not the sum, which is why rule 3.22 talks about availability rather than accuracy.
The wider enforcement picture is moving the same way on both sides of the Atlantic, with July's US actions including a $4 million supplements judgment and Made in USA warning letters to seven companies, collected in Simpson Thacher's monthly advertising update.
Live examples of the same construction are everywhere once you look. Klarna's membership launch this week headlines annual value "as much as EUR6,000", per Klarna's own announcement, a figure that assumes a member uses up to 23 bundled subscriptions every month. True at the maximum, unreachable for almost everyone.
Compare that with how Apple has written its own launch offer. Its credit eligibility page states 15% back but publishes the ceiling in the same breath, "up to $1,000 USD per month" and "up to a total of $12,000 USD". The cap sits beside the percentage instead of underneath it, which is exactly the move rule 3.22 rewards.
Misleading advertising rarely announces itself in a draft. It hides in the join between a true number and the product it has drifted onto, which is exactly the undergrowth a competitor knows how to search.
Five checks before the next sale goes live#
Avoiding misleading advertising here needs no compliance department. It needs one person with the pricing data, one hour, and a willingness to test the headline against the worst product in the range rather than the best.
Treat this as a misleading advertising audit rather than a legal review. The fox does not need the whole hedgerow; it needs the one gap the quarry keeps using, and in savings copy that gap is almost always the missing baseline.
If the saving is against competitors rather than your own past prices, say so where the number is, not in small print underneath it. That single move disposes of most of this ruling.
Count how many products in the range actually reach the headline figure. If it is a minority, the figure is not your headline, whatever the calculation says.
Ask what the photography asserts independently of the copy. The Dreame decision turned on models whose hair contradicted the qualifier in the text.
For each competitor or third-party figure, record which product and which page it describes. A real number on the wrong product is the failure that survives review.
Rule 3.7 requires documentary evidence held before the ad runs. A substantiation file built after a challenge arrives is already late by the code's own wording.
The one that would have saved Nectar#
Check one, and it costs nothing. Moving "compared with average prices at similar brands" from small print into the headline itself removes the misreading the whole asa ruling turns on. The claim gets duller and it also gets defensible.
Duller and defensible is the misleading advertising trade every regulated advertiser eventually makes, and the brands that make it early spend far less time in correspondence. Advertising compliance is cheapest when it is a writing habit rather than a review stage.
That posture runs through everything folkfox builds, from brand strategy to the content marketing work that has to survive a regulator reading it. It is the same discipline we applied to as seen in strips and to AI disclosure labelling.
If you want the claim inventory, the substantiation file and the image review built before the next sale, that is what folkfox does for brands in awkward categories. Quiet, quick, and finished before a rival does the arithmetic for you.
Get the baseline into the headline and most misleading advertising exposure in a sale campaign simply evaporates. It is a den built before the weather turns, rather than a burrow dug in the rain.
Frequently asked questions#
What counts as misleading advertising under the CAP Code?
Rule 3.1 states that marketing communications must not materially mislead or be likely to do so. The test is the overall impression on a consumer rather than whether each individual word is literally true, which is why a technically accurate claim can still be found misleading.
Can I compare my prices to competitors in advertising?
Yes, but the basis must be clear and prominent, and comparisons must use prices actually available. In the Nectar ruling the ASA required future claims to make the basis of savings clear and to base competitor comparisons on real available prices rather than a selected average.
Do up to claims need every product to reach the figure?
No, but rule 3.22 says such claims must not exaggerate the availability or amount of benefits. If only one product line reaches the headline saving and the rest offer considerably less, the claim is likely to breach the rule even where the arithmetic is correct.
Who can complain to the ASA about an advertisement?
Anyone, including competitors. The Nectar case was brought by rival Simba Sleep Ltd. Competitors are often the most effective complainants because they hold the category pricing data needed to test a savings claim properly.
What happens after an ASA ruling is upheld?
The advertisement must not appear again in the form complained of, and the advertiser is told what to change. Rulings are published on the ASA website with the brand named, so the reputational record is public and permanent even though there is no fine.
When does substantiation evidence need to exist?
Before publication. Rule 3.7 requires marketers to hold documentary evidence before distributing or submitting a marketing communication, and the ASA may regard claims as misleading in the absence of adequate substantiation. Assembling the file after a challenge is already too late.
Read more on this topic#
The regulator read your as seen in strip as a promise
The same regulator applying the same logic to credibility claims.
Read the pieceThe label was on the screen. The regulator ruled it wasn't enough
When a disclosure is technically present and still fails the test.
Read the pieceWho verifies the verifier, now the arbiter has an owner
The measurement layer that decides whether anyone notices in the first place.
Read the pieceThe patch had no GLP-1. The copy is what went to court
Today's other claims story, where the copy became the liability.
Read the piece
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