It's already been said, but uninstall that app. With that app installed, Tmo can actually remotely log into your device when you call them with problems and see everything on it. I have read a couple instances of it from other XDA members; as well as I called the other day about my S5 and some data additional data that was on my paper bill but not my online bill, and the guy said "lets check your phone... hmmm, that's odd, I cannot log into your phone. Is your tmobile My Account App working properly?" to which I replied "no, it's not there." He commenced to tell me that that could be a problem, warranty, blah blah blah. So we got into a very long discussion about warranty to which he had no reply where it states in their contract that I absolutely voided my warranty with root and custom. Long story short, he said he was marking my phone number as warranty something or other and that I had customized my phone. whoop-de-do, prove it when I drown it or throw a brick through it for a warranty claim if I ever need one...