Billed for unused services after speaking to call center

I have spoken to call centers numerous amounts of times I am being billed for Vodafone live service R10 per day I have asked for services to be canceled they said u need to dail a ussd code to unsubscribe I did so It is now a new month and I'm still being billed as well as call center said they would log a service a request to IT department and it's been a week with no feedback the way I feel vodacom can come to my address collect there handset and simcard and cancel the contract because the call center agent said unfortunately it is not there issue I can not be refunded vodacom u are *****ing my money