Report it first to the marketplace, using the seller name, listing link, and screenshots of the misleading size chart. If the seller keeps using the same wrong chart across multiple listings, also report the pattern to your national consumer protection authority or the body that handles misleading advertising in your country.
Start by saving proof before the listing changes.
- Screenshot the full product page, including the size chart, unit labels, product title, and seller name.
- Keep the order number, date, and the exact size you ordered.
- Measure the item yourself and photograph the measurements next to a tape measure or ruler.
- Save any messages where the seller confirms the chart, size, or fit.
The key issue is not just that the item did not fit. What matters is whether the chart on the listing was misleading, inconsistent, or different from the product you received. If the chart uses cm but the product page or title suggests another system, capture that too, because unit confusion is a common trap.
Then report it on the marketplace.
Ask the platform to review:
- the specific listing
- the seller’s other listings with the same chart
- whether the chart should be removed or corrected
- whether the seller should be warned or restricted if the problem is repeated
Include:
- order number or item ID
- the listing URL
- screenshots showing the chart and any size notes
- a short explanation of why the chart is misleading, for example “the chart says EU 40, but the measured garment is far smaller”
- your measured dimensions, not just “too small” or “too big”
If you already bought the item, ask the seller and the platform whether the item can be returned, replaced, or refunded because the size information was misleading. The result depends on the platform’s dispute rules, the seller’s policy, and the facts of the listing, so check the help page for the exact “not as described” or “misleading listing” process and any time limit tied to the order date or delivery date.
If the same seller repeatedly misleads buyers, escalate outside the marketplace too.
- Contact your national consumer protection authority if the seller is advertising to consumers in your country and the problem is repeated.
- If the issue looks like misleading advertising rather than a one-off order problem, use the complaint channel for unfair commercial practices or advertising in your country.
- If the seller is based in another EU country and you are unsure where to complain, your national European Consumer Centre can point you to the right body.
When you contact an authority, give them the seller name, marketplace name, listing screenshots, and a short summary of the pattern. Say that the seller uses misleading size charts repeatedly, not only for one item, and ask whether they can investigate or forward the complaint to the correct regulator.
If you have not ordered yet, do not rely on the size chart alone. Message the seller for a written confirmation of the real garment measurements and compare that answer with the listing before buying.
Practical tip: Keep one screenshot that shows the chart, the product title, and the date together, because that is usually stronger evidence than separate images taken later.
