VODACOM DELAYS CONTRACT CANCELLATION DELIBERATELY TO CONTINUE MAKING MONEY FROM MILLIONS OF PEOPLE! UNACCEPTABLE!!!!

I cancelled a contract in January with no success. 3 weeks back I phoned to find out why they have been deducting from my account while I cancelled the contract. Their response was that the cancellation was not successful and I have been receiving airtime monthly. I explained that my monthly statement can prove that I have not been receiving anything from them but deductions from my bank and they argued their statement shows something different. I asked for a copy of their statement and they denied, apparently they are not allowed to share my statement to me. WHY????????????????????? I asked them to cancel everything immediately and they did that. I waited for confirmation for the cancelation for 3 weeks and today I still do not have it. 5 days ago a sales person from Vodacom tried to sell me something into an existing contract I have with them and I explained that I DO NOT WANT ANYTHING FROM VODACOM, ANY CONTRACT I HAD WITH THEM MUST BE CANCELLED IMMEDIATELY. I have to call them again with R100 airtime to get them to cancel for the 3rd time. WHY ??????????????????????????????????