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stefanoforesti
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Joined 3 years ago
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Re: The MSISDN is already registered to another IAM user account
this is how in stumbled in the fix logout of your existing tmobile email account signup for a new account in t-mobile.com with your new **tmobile phone number** not an email address in the signup you are asked an email address: put the email address of your old tmobile email account, and its password now you are asked if you want to manage multiple accounts from that email: reply yes go through verification codes both in email and phone now you are in your old email account that has the new phone number Stefano71Views2likes0Comments