You can only edit your phone number using the the Azimo app:
1. Tap on the Azimo profile icon in the top right corner of your dashboard.
2. Select "My details” from the menu.
3. Tap the "Edit” button beside your phone number.
4. Enter your new phone number.
5. Tap "Continue” (“Save” on iOS) and verify by entering the 4-digit code sent to your phone.