To cancel your AT&T account you will need to call into support. But before, you should find another provider and check to see if your number is portable, meaning you can bring the phone number to another company.
The issue in GetHuman-kroupab's own words
I need to find out if my grandson accidentally signed up for a auto renewing membership for a $**.** monthly fee under username z*Dexter. I don't have an account and am unable to access his as he is in school and we don't live in the same state. Last charge was made on Oct **th for $**.** on my PayPal account, visa x-****. My name is Beth Kroupa, email K*****@***.com and cell ***-***-****. I put in an email inquiry and got an automated reply stating my membership ends soon, cancel soon to avoid further charges which did not help my situation. My ticket * is *******. I need assistance to cancel any recurring fees to my credit card so I don't have to cancel my credit card to stop the recurring fee.
GetHuman-kroupab did not yet indicate what ROBLOX should do to make this right.
I have an issue with ROBLOX too
How GetHuman-kroupab fixed the problem
We are waiting for GetHuman-kroupab to fix the problem and share the solution with the rest of us customers.
Follow this to see how it gets fixed
Find similar issues & fixes
Follow other customers in the midst of the same issue or find a prior solution.