Forum Discussion
The MSISDN is already registered to another IAM user account
El MSISDN ya está registrado en otra cuenta de usuario IAM. 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...
I think I found a workaround.
I kept receiving the error message (The MSISDN is already registered to another IAM user account) and was finally able to sign into the account using the same email when I tied it to my Apple watch number.
Once I could access my account I was able to update everything else.
