Serai SodaContests2025

Receipt Rush

A 10-week buy-and-win contest on a microsite that validated 212,000 receipts without a single manual check.

The challenge

Serai Soda runs six consumer contests a year across supermarkets, sundry shops and e-commerce. Every one of them was a new agency, a new form, a spreadsheet of entries and a week of manual receipt checking before any draw could happen.

The idea

One contest engine, re-skinned per campaign. A microsite with receipt upload and OCR validation, unique-code entries for on-pack promos, duplicate and fraud screening, an audited random draw and a winner page that updates itself. Receipt Rush was the first campaign on it: buy any two bottles, snap the receipt, win weekly.

  • Contest mechanics & T&Cs
  • Microsite build
  • Receipt OCR validation
  • Draw & winner management
  • Entries dashboard

The microsite

One contest engine, re-skinned per campaign.

  • Mobile-first entry form with receipt photo upload
  • OCR reads retailer, date, products and amount; rejects out-of-period or non-qualifying receipts
  • Unique-code and QR entries for on-pack promotions
  • Duplicate receipt, device and phone-number screening
  • Weekly audited random draws with exportable audit trail
  • Winner announcement page, SMS and email notifications
  • Live dashboard: entries by day, retailer, SKU and state
  • Re-skinnable per campaign: new look in days, same engine
Open the demo microsite →

Results · demo figures

  • 0k

    receipts validated automatically

  • 0%

    entries flagged and rejected as duplicates

  • 0 days

    from brief to live microsite

Next project

Mall Sampling →