Cancellation process *****

I have tried to cancel my fibre line with them. I sent an email requesting the cancellation of my account on the 31st of January, which would require a cancellation by the end of Feb. They responded to my email on the 2nd of Feb asking if I wanted to cancel the contract. I again said yes. They then responded by saying that I have cancelled my contract on the 2nd of Feb and therefor I would need to pay for the Match billing. I have sent numerous emails, without success to sort this out. Eventually I called the accounts department, which agreed with me that I had cancelled my account as required. Now, 2 weeks after I thought it had been settled, I get a notice that I am going to be handed over due to non payment of my account. I have now mailed cool ideas again and now the dance continues. First email back to me from the cancellation department...I had cancelled my acount on the 2nd of Feb. The service I have received to date has been absolutely pathetic. Don't use them!!!