How do I go about adding an authorized user to my account
Best answer by tmo_chris 27 August 2019, 22:10
The above steps are for tmobile.com access. If you want to add an authorized user to your account, you will need to speak with us over the phone.
I believe you can go to your T-Mobile account either through the web or on the app though I would suggest the web and find that line and being logged in as the primary account holder you can click its profile and make it an authorized user.
Here's the link.
Set up line permissions
Lol I’ve had my sis(primary) do it over the phone twice and still not authorized
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