There are typically two main reasons why your bank account linking might have failed:
1. You are trying to link a credit card or savings account
To solve this, please ensure you are only linking a Current Account to loyalBe.
2. You are not brought back to loyalBe automatically after logging into your banking app
This usually means that your web browser doesn't support redirects*. To solve this please ensure you are using Google Chrome browser as your default browser. See here on how to do this: https://support.google.com/chrome/answer/95417?hl=en-GB&co=GENIE.Platform%3DAndroid
*This is a known issue with Samsung Internet web browser.
If you have tried the above and are still experiencing issues, please try again later or get in touch with support via live chat.