Account still not cancelled

I requested that my mont to month data contract be cancelled on 27 July at the Richards Bay TM branch. I called customer service and they told me that no such request was lodged. I then contacted the Richards Bay branch, who told me that the cancellation has been cancelled. I requested it be cancelled again on 30 July. From past experience I know that these cancellations are done almost immediately, it all depends on the person in charge of entering the information into the system. On 3 August the contract was still not cancelled, and I have been billed for another month. It took no more than 3 days for a new contract to be approved, but now all of a sudden it takes more than a week for a month to month contract to be cancelled? I then phoned TM customer service again, who told me that I need to contact the branch to find out what is happening. Here we go. The same old story where everyone holds everyone else responsible and the customer just has to fork out more money. I am very upset with Telkom mobile, and I don't think that I will easily consider another contract with them.