Poor Service from Telkom

I had Wifi installed at my previous residence. This year i had to move to i cancelled it on the 11th of June 2018. There is a one month Cancellation Period which would take it up to the 11th of July. At the End of the Month of July the full amount was still taken out of my account. I chatted to an agent by the name of Samukeliswe on the 30 of July 2018 who said she will log a dispute Ref ********** 0 and she informed me it will take 7-10 days. So i called back on the 10th day and the agent by the name of Zinhle then changes the waiting period to four days. So i waited four more days and i chatted to Zinhle again. She then tells me the systems are down and she cannot do anything. I feel like i am being sent around in circles. Furthermore i got another invoice for the end of August stating my account will be debited again. I asked her how come no one has contacted me to give me an update on the dispute ans she says its my responsibility. I don't see how an error on Telkom's side should me my responsibility. This is not professional. Please support.