How are duplicate and fraudulent till slips stopped?
Smartslip.ai compares each new photo with slips already accepted in the campaign. A second photo of the same receipt is rejected, so one purchase cannot create two entries. The check also looks for the right brand and pack, which keeps a shopper from being rewarded for a different product. Different point-of-sale layouts are handled by reading the fields. The brand can review the audit trail for any entry.
The problem these checks are aimed at
A till slip competition pays out, or gives away a prize, against a purchase. The weak spot is a slip that is sent twice, a slip for the wrong product, or a photo that is too poor to trust. The check happens before the entry is counted and before a reward is sent.
A slip that has already been used
The common case is simple. One person, or a group of people, photographs the same receipt more than once. Smartslip.ai compares a new photo with slips already in that campaign. A till slip already used in the campaign can be flagged, so one purchase does not become two entries.
A match across more than one campaign stays inside the group of campaigns you have authorised. It is not an open search across every promotion on the platform.
The wrong product, store, or date
Fraud is not only a second photo. A shopper can send a real slip for a different brand, a slip from a store that is outside the promotion, or a slip from before the start date. Those fail the same rules as any other entry: product, pack, retailer, date, and spend. The shopper is told which rule the slip missed.
A photo that is hard to trust
Unclear photos are flagged for a person to review. An unclear image is not treated as a pass. Your team sees the photo next to the details that were read, then records a decision and the reason. A shopper can be asked for a clearer photo.
Be straight about the limit. Not every altered image is found. The practical control is the combination of the rules, the duplicate check inside the campaign, and a person reviewing the slips that look wrong. Suspicious entries can be held before a reward goes out.
What this looked like on a live campaign
Wellington’s received 45,636 entries and accepted 41,106. The gap is the slips that missed the rules or needed to be held. The trust centre describes how those decisions are recorded, and the birthday campaign has the full set of figures.