I had a bad experience with ATT autopay and will never use any autopay from any company again. You give up too much control. Instead, I only use my bank using online banking, and set scheduled and recurring payments. So, I never give my credit card information to a third party. And I get better reports at year end about how money was spent.
My autopay problem originated when I had ATT landline plus DSL. I cancelled the landline, leaving DSL only. What they call a "dry line." Before cancellation I adjusted the monthly autopay fee to the DSL only fee. Unknown to me, ATT terminated my user name and login when the land line was cancelled. They never told me that. So when I later cancelled DSL, I had no "account" and I could not login to stop autopay. At this point I was receiving NO services from ATT but their autopay kept billing me. Month after month after month.
If I called ATT, they would tell me to log into my account. When I told them I could not, and why, they told me I had to visit an ATT store. When I went to an ATT store they told me I had to call the toll free ATT number. I would call again and they again could not find me as no account or service existed. Finally, during a 2 hour marathon call with ATT, I got the autopay stopped. The woman on the phone gave me a confirmation number. But, the autopay charges continued. Like the call never happened.
I reported my credit card lost. It was replaced with a new card and new number. I hoped that would break the chain. The autopay deductions successfully survived the transition from one card number to the other.
After a long time of fighting this, I started reversing the charges on my credit card. I had to call for each charge to dispute that individual charge. After doing that for a while, I received notice that I was sent to collection for the autopay amount. I have a credit rating in the 800's and here I am in collection. I provided documentation of everything plus copies of all bills, etc. to the collection agency. Did not hear anything back for about 3 months. Then I was notified it was referred to a new collection agency. They contacted me demanding payment, and we did the same thing all over again.
They finally gave up billing me-- after a very long time and after many reversed charges on my credit card. Needless to say, I will never reveal or provide my credit card number to a third party for autopay again!