Xfinity has blocked online and phone payments for my grandma.

Grandmother got a new debit card causing her auto pay to onivious deny. Xfinity didn't call her or anything. When she finally realized the follow month she called in and they wouldnt take payment over the phone even though they kept telling her they would take it. After getting furstrated with customer support repeatedly she ending up mailing a check and canceling the service. 

Then I her 35 grandson came to visit with the family. They called and wanted her back as a customer and said the problem would be fixed with her auto pay. I told her to do it since I was here to help set it up and make sure everything went smoothly. I've spent 6 hours on the phone today with customer service just to find out that they have blocked all on phone, and online payment methods. They seriously want this 80 year old great grandmother to drive 120+ miles round trip every month to pay a bill. She had missed a single payment for years leading up to this issue and was eager to pay them every single time she called. Just purely ridiculous. 

If they can't get this fixed then while I am still in town I'm canceling the service and setting her up with someone else.