Elite Mobile, Techzone and Vodacom **** with monthly debit orders

Techzone, a Vodacom company, got an order from me via Elite Mobile , another Vodacom company probably used to confuse customers and make it difficult to find details of any order, about 5 years ago as part of a deal to buy a laptop from Vodacom for an amount of R160 per month. I don't need this service at all (something like forward call, etc.) and has been trying to cancel the monthly debit order for more than a year. I have spoken various times with a person at accounts at Techzone , cancelling the service, who promised to cancel immediately every time, but nothing happens - the cash *** of services invoiced monthly to customers who just can not succeed in cancelling keeps going. Elite Mobile, also operating as Techzone, is a Vodacom company and initially I was shunted from the one to the other. I phoned ***, Vodacom's only way to cancel a contract, making it as difficult as can be to cancel a contract at Vodacom. They referred me to 082111, but impossible to get thru. I later managed to know that Techzone, a non registered company, is used by Elite Mobile to invoice me, tel no ***