Features that a My T-Mobile online account provides include allowing a customer to check phone usage, view or pay bills, modify plans and get support for devices that have T-Mobile plans. A My T-Mobile online account comes with several permission levels, including primary account holder, full access and restricted access.
A primary account holder can set permissions for others on the account. He can run the account and all of its lines. People whom he allows to have full access can also manage the account and its lines. People with standard access can view general information on the account as well as details about their own lines only. They cannot change any lines, including their own. People with restricted access can see basic account information and a usage summary of their lines. They are barred from making any line changes.