iPhone T-Mobile App issue

I have an Android phone, a OnePlus Norton N100, their T-Mobile App has been doing that to me for about the last 6months too. And it's frustrating because I can't find any help with it, have done the MULTIPLE uninstalls, reinstalls, cache and storage clearings of the app and cookies and you name it I've tried it. And still, as of 10 mins ago, Its still not giving me that same message, same button options and same frustrating and enraging loop cycle of b.s., as you are experiencing.... But this hopefully updates the issue to not only limited to iPhone devices....