Canceled services

Once more Telkoms bad service is just one more reason why I have decided to cancel all my services with Telkom. On the 20-12-15 my notice period lapsed in cancelling my services and it was cut off, but now I'm still being billed for services that I don't use any more. I then lodge a dispute and was given a ***, today I must call to get progress and is then only informed that my dispute was rejected and telkom can't even give me a reason why! They say that a relevant manager will call within 1-2 days, only after the debit order has gone off.