This is the worst app ever for postpaid account! – T-Mobile Review

I get a postpaid account with T-Mobile. I order iPhone 13. I unlinked prepaid account from my T-Mobile ID and now I can’t login the app. I uninstalled and reinstalled it. I changed the email and the password. I still cannot login to the app. Now I can only use the web to pay bills and view my account. Where did T-Mobile find people that did not fix where a postpaid customer can login to the web to view account and pay bills but not their own app.
Review by LE Studios on T-Mobile.