I was very angry to suddenly - after joining T Mobile months ago - have Facebook and Amazon Shopping apps downloaded to my device without any permission or notification. Based on other help threads here I'm guessing it's the "App Selector" feature that did this. You can try uninstalling that app to see if it stops the auto downloading. I just did and am waiting to see if that works (on a Galaxy A71).Instructions and description here: https://www.t-mobile.com/support/plans-features/t-mobile-appselector
Already have an account? Login
Enter your username or e-mail address. We'll send you an e-mail with instructions to reset your password.
Sorry, we're still checking this file's contents to make sure it's safe to download. Please try again in a few minutes.
Sorry, our virus scanner detected that this file isn't safe to download.