I noticed on my bank account I was being billed twice for service. One being with one phone and the other for two phones. I logged in and found there was a number that I did not have that I was being billed for. Think this was created in the process of changing phones at one time or another. Now I still have an account with 2 phones and I am being billed correctly there, but cannot find those phone # or the account that they are attached. Again I think a new account was created when adding or change a phone at some time. My question is: how can I find that account?
Moderator’s note: Title edited to add context.