You will need to head to the Settings menu.
When you input your phone number, you need to make sure that you input the number using the international format without any spaces or special characters, EG 1587647384.
You do not need to add the "+" symbol nor “00” when you enter your phone number.
Then tap Update and Verify and the system will send you a 6-digit code to your phone that you will need to input. If you do not receive the code, you can click I didn't receive the code.
Once you input the phone number, tap Verify and your number will update on our system.