A while back I upgraded my sons account to Premium. He lost his login info, started a new free account for himself and just now told me. In the mean time I have been paying for the Premium account. I have been able to figure out his Spotify username by logging in on my phone (I was able to use his phone number to login). I can't make any account changes from the phone and the same login info will not work on a desktop. When I try to reset the password neither one of us is getting the reset email.