Cancellation of account

I have canceled my account with you guys. Now your system is set up in such a way that it does not cancel everything at once, which I find pathetic as you are also requesting a reason for cancellation. So this cost extra money from my side. Now I did cancel my ADSL line with you as well, as telkom can't close my account as it still is at you side. I would like to find out how long still do I have to wait till it has been given back to telkom, as this is also costing me extra money.