CONTINUED BILLING FOR CANCELLED SERVICE!!!

I cancelled my Telkom internet package in March 2015, to date I am STILL being billed. I have been on the phone to Telkom too many times to count and still I am receiving monthly invoices. When I realised I was being debited I called them and was told that they were sorry but they don't do refunds but that they would cancel my account immediately (I was told this was done while I was on the phone). Obviously it wasn't because I then received a Debt Collectors notice due to unpaid fees...I agreed to settle the amount because I did not have the energy to fight this (this was 3 months worth of fees for AFTER I had cancelled my account). Despite all this I have just received this months invoice. I don't know what else to do, I have followed their procedures and still they are trying to take my money for a service that has been cancelled for 7 MONTHS.<br> <br> This is blatant ******* and severe incompetence!!!!!