First, check notification settings on your phone
Check if you enabled push notifications permissions for Delta on your phone. To check this, go into the Settings on your phone and then navigate to Nofiticaiotns or Delta. If it isn't enabled, please enable it.
If enabled and still not receiving:
Open Delta and go into Settings.
Press on Troubleshooting Notifications. This will run a brief diagnostics test and send you a test notification.
The test results will advise you on how to proceed. If the test is successful and you receive the test notification but you are still experiencing issues then please contact support.
There are odd cases where during the installation process, we didn't manage to get your push notification token. In this case, a simple reinstall will work. No worries, your data won't be gone after reinstalling. Exchange account connections will need to be re-added as keys are not stored for security reasons.
Still not working? Please contact us via firstname.lastname@example.org
PRO TIP: If you need support with Alerts, you can follow this guide here.
PRO TIP 2: Notifications cannot be cleared in the notifications tab of Delta.
PRO TIP 3: If you want to stop receiving notifications from TestFlight for Delta Beta, you can follow this guide here.