To get your cashback, you pay with your main bank account: the account you use for everyday purchases. That account must be connected to the app.
Check that:
- your main bank account is connected to the app;
- you paid with that connected account;
- you shopped at the shop shown on your cashback, before it expired.
Why your main bank account? It lets us check that a purchase is genuine, which protects you and the app against misuse.
Is all of this correct and still no cashback? Go to your Cashback Sock and report it as missing cashback.