Double billing / Failure to honor cancellation

I have two complaints:<br> <br> I downgraded my internet and got charged for both old and new accounts after the downgrade!<br> I logged a complaint on the 10210 number last month and saw on this month bill that they did not reverse the double billing.<br> Now I'm charged for late payment as well.<br> This month again I got double billed!<br> <br> I cancelled my Telkom internet subscription after filling the forms that they have requested.<br> <br> I received confirmation of receipt, and no phone call to query anything.<br> <br> I STILL got billed again this month for both internet services!!!<br> <br> This is very frustrating to say the least.<br>