- The customer scans your QR code or opens your link.
- They enter their name and contact details, tick the box "I have read the programme rules and the privacy notice", and choose whether they accept offers (the box is never pre-ticked).
- On iPhone, "Add to Apple Wallet" opens the card to be added; on Android, "Add to Google Wallet". No app to install, no account to create.
The card shows their name, their 4-digit code and their balance. From Google Wallet, a link also opens a web version of the card. The programme rules are public, in the customer's language.
A customer whose phone has neither Apple Wallet nor Google Wallet can still give their 4-digit code: you find them by name in Stamp.