peoplepc.com I canceled and they kept charging your account without my ok. They said I never cancled. $487 rip off Internet

Three years ago I had internet through peoplepc.com. I then cancled it when I got highspeed internet through aTT. They continued to charge my debit card and I acctualy did not catch this for quit some time. Then last May I called them to cancle it again and they said tyey would send the conformation info to me by email and they never did. I once again found that they were still taking the money. They claim that I never cancled it and will not take care of te almost $500 they have over charged me. Please DO NOT USE THEM AS AN INTERNET PROVIDER they only deal with seniors and then they rip us off.