If you don't have Google Pay, you can save your digital stamp card to Pass2U.
1 - Open your loyalty card URL in your browser app (e.g. Chrome).
2 - Once you fill in your details, scroll down and tap on 'No - add to a different wallet'.
3 - If you don't have Pass2U, tap on 'Install Pass2U'. Once you've installed Pass2U, go back to your browser app and tap on 'Add to Pass2U'.
4 - Tap on 'Download'.
5 - Tap on 'Open' to save this card to Pass2U.
6 - Here's what your digital stamp card will look like in Pass2U. Pass2U replicates what your card looks like in Apple Wallet, and also supports location based messages and push notifications.