T-Mobile app keeps stopping.

This issue with the "T-Mobile app keeps stopping" has been going on for many months.  About a month ago, I found out in this forum that t-mobile was aware of the issue & was working on it.  It stopped for awhile & started again a few days ago.  This is beyond annoying.  I have tried everything I could think of - uninstalling the app, updating the app, reinstalling the app, rebooting after doing anything new, etc.  At times my phone is almost unusable because the message pops up when I am trying to do something crucial - like making a payment to a medical provider.  This can't be that difficult of a fix.  T-Mobile - your response to this issue is unacceptable.  When are you going to fix this issue permanently.  I am tired of my phone being held hostage to your dismissal of this problem & your refusal to make a permanent fix. I too am so annoyed  by this. You should be giving us Credit for the impossibility of using our phones in desperate times. This message could be the difference between a 911 call or any emergency heart issues As I have.   THis whole Crap must stop or maybe all of us need to unite to go with another company. Maybe I should talk my husband  into not paying the Bill as well.