Contract cancelation not processed in time!

I have an issue that is not being resolved. I called Telkom call centre in March to cancel my contract which was coming to an end in June, the agent advised that this can only be processed 30 days and not before that. In May I called to request cancelation and the agent I was dealing with advised that she had logged it but I can also do the cancelation online which I did, in the month of June I did get calls from your agents on an upgrade where I did advise that I was not upgrading and would like to have my contact terminated. I spoke to an agent in June to follow up on the progress of my cancelation request and was advised that it had been processed. In July and August the contract loaded and was not changed to prepaid I called and the matter was resolved but I was not advised that I owe Telkom for the two months. I am currently in the process of purchasing a house and it came out that I owe Telkom and the agent I spoke to advised that I owed the amount because I used it. My question is how do I owe when I had given cancelation in time? I have heard people complain on how it is a mission to cancel a telkom contract, for a first time user on contract I will NEVER EVER take up a contract. Knowing that Telkom will take years to resolve this unpaid amount I decided to make payment. This morning I called in to request a paid up letter so I can finalize my house purchase and I am being told this will take 5-7 working days which I do not have someone will make an offer and I will lose a DREAM HOME all for R800 which was not my fault because Telkom processes are not functional!!! Can I please have this matter resolved and escalated and also can I have an email address to forward the POP and get a paid up letter as a matter of urgency