i can't add any app my verification is stuck on the loop of different device for over three weeks

You can't make this change at the moment

This is because we noticed you are using a device you don't usually use and we need to keep your account safe. We'll allow you to make this change after you've used this device for a while. i been stuck on this loop and i don't know how else to solve it because i have even tried using my phone which the acct has been for years and i still get the same reply. i need help please