cancellation confirmed yet still being billed

I cancelled and have chased up again and again. They confirmed receiving the cancellation and it is apparently being processed. I cancelled on the 23rd Feb but apparently it took someone 3 days to read that email and they have cancelled it as of the 26th Feb which is actually unacceptable but that's the kind of service I expected anyway. Could someone with any sort of competency level please cancel my account. I am still receiving bills even after confirming the cancellation was received. I can't wait to never have to deal with Telkom ever again. Telkom social network team please don't just put a comment saying that you will be in contact with me or it will be resolved unless you are actually going to get it resolved!! DO NOT phone me anymore, send me an email confirming it has cancelled so I never have to hear from you again.