Make sure to clean out your cashe and close any windows open on your phone. Unfortunately for some players connection issues are a real thing. The devs are looking into it.
If you have the game still on your phone, you can contact customer service through the login screen,(it's the head icon). Send them the information needed and check back within 24 hours. You can also try tapping on the Change Accounts tab on the login screen. This will take you to a screen where any...