Telkom - Useless!!!

I canceled my Telkom account in January due to no requirement any longer. I called the call center and followed their process to email the cancellation form on the 16th January. We are now in May close to June, and I am still getting billed a monthly fee from Telkom. We have made multiple calls to their call center every time being promised that they will escalate and cancel it... guess what nothing has happened. Telkom you need to open your eyes to customer service, as before you know it, you will be in the same situation as SAA - running at a loss each year. absolutely useless company. the last contact I spoke to was a call center agent called Brandon who promised to have this sorted out! We are receiving arrears sms's now from Telkom due to their incompetence on doing business. Telkom call me urgently to have this sorted and my account cancelled with zero billing to myself.