Find the primary source
The strongest reference is an official retailer page: campaign terms, regional landing page, loyalty programme, help centre or identifiable communication. An aggregator, old social post or screenshot without a URL can be a lead but should not be the only evidence.
Check five elements
| Element | Question | Risk if missing |
|---|---|---|
| Market | Do country, currency and domain match? | Incompatible terms |
| Date | Is there a start, end or availability statement? | Ended promotion |
| Seller | Is the item sold by the retailer or a third party? | Marketplace exclusion |
| Requirements | Account, app, minimum or verification? | False expectation |
| Total | Does the saving appear before payment? | Different final price |
Interpret “up to” correctly
“Up to 50%” means the maximum may apply to a limited selection. It is not a store-wide 50% discount. Review the previous price, current price, participating range and whether the reduction is already built in.
Warning signs
- The URL imitates the brand but uses an unusual domain.
- A card is requested to “validate” a free coupon outside official checkout.
- No market, date or terms are available.
- The copy creates extreme urgency and promises an implausible saving.
- The link repeatedly redirects or downloads an unexpected file.
Keep useful evidence
For important purchases, retain the terms page, order summary and confirmation. Avoid storing or sharing sensitive information. Documentation can help retailer support if the price changes later.
The final rule
An offer is useful only when it improves the full cost of a purchase that already makes sense. Compare delivery, returns, warranty and seller; a small code does not compensate for an unreliable retailer or inflated basket.