Afrihost keeps billing for cancelled account. For MONTHS!

I have been trying to cancel my account with afrihost for months, and they keep billing me! Whats worse, I get emails from them saying that they will cancel my account and reimburse my payments I have made. And then they just debit my account again! I have never used this company, and I never will. I signed up, and immediately cancelled, but they still debit my account. This has been going on for months! Absolute worst accounts department.