*****ING MY MONEY AFTER ACC CANCELLED

I cancelled my account in January, and required a credit as my wifi modem was not working since December. I also had the technician came out twice to check as I had reported a fault.<br> <br> The lady whom I spoke to verified that I had not used the data and a credit was due and I cancelled my account.<br> <br> Since then I have been billed this:<br> <br> <br> <br> <br> 30 Jan - R499<br> <br> 2 Mar - R259.12<br> <br> 30 Mar - R473.07<br> <br> 4 May - R504.98<br> <br> I cancelled my account and am being incorrectly invoiced every month, I have phoned twice to query this and have not been credited nor had a response. They keep taking my money every month though even though I don't have an account any more....