Forum Discussion
The MSISDN is already registered to another IAM user account
The MSISDN is already registered to another IAM user account. I had an old account with mobile. My phone number and email is attached to my old account. I cannot use the Mytmobile app to log into m...
Me too. This is maddening! I am sure it’s because I was a T-Mobile customer up until 2021 and I am returning. The old account record still has this mobile number attached and obviously they’d use the mobile phone as the primary key on the record, or at least a non-unique key in a cluster, so …
It doesn’t seem like T-Mobile has developed a thorough “Use Case” for a returning customer. Of if they did, they totally missed this part!
UGHHHHHHHHHHHHHH
(But they are still better than Verizon. The support team is very chipper. Good coffee?)
