APPALLING LACK OF SERVICE RE CANCELLATION OF A CONTRACT

I sent through a cancellation request with the supporting form to the cancellation department on the 24 November requesting immediate cancellation of my WIFI router contract. On the 27th I sent a follow up request as I had received no feedback. On the 29 November I sent through a third request, on the 04th December I sent through the fourth request. I called the call centre on the 6 December. I spoke to an agent “ mosoanai”. He stated that my request was not received DESPITE HAVING BEEN READ BY YOUR CANCELLATIONS DEPARTMENT. I sent him my documents once more and he “logged a call” to request my cancellation. After spending half an hour on the phone with him, the line dropped and he refused to answer my emails. I emailed this agent on the 12th December to follow up with this cancellation, still no response, I called in yesterday and spoke to “ngobesb”. He confirmed that my contract WAS NO YET CANCELLED. He then gave me a team leaders details by the name of 'ngozon1”. I sent her my cancellation documents, she has not acknowledged this email nor confirmed that it has been processed. In the interim, I have another active account with Telkom and I am getting billed for this as well as the router which should be cancelled. I will reverse any debit order raised against my account and pay you what I think is necessary as I am CERTAINLY NOT GOING TO PAY FOR A SERCICE I NO LONGER REQUIRE. I am at my wits end with your company and I need a way forward on this matter or I will be seeking other arbitration methods.