Comcast tried to autodebit my credit card for a bill I already paid

I saw that Comcast increased the price for my internet without telling me. I was annoyed but paid the bill and changed my settings back to the service and price we actually agreed to and two weeks later they tried to autodebit my credit card for the amount I already paid out of my bank account. Scammers. We need another class action, apparently this predatory company needs another fine.