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I'm trying to 'upgrade' to SIM only on three devices... but I keep on getting the message that the 'Account Owner' must sign in. But I AM the account owner, so does anybody know how to get past this?
Thank you - Logging in isn't a problem. It's when I click on 'Upgrade' that I get the message that the account owner must log in. Not sure what that means, since Ive had the account for at leat 20 years!