********* behavior from vodacom

Vodacom initially extended my contract via the telephonic service without my consent and didn't inform me that my contract would be extended. Thereafter I tried on numerous occasions to cancel the contract and end the service to no avail.They said that I would be contacted within 48 hours and it's long past the time. I am still being billed for a service which I do not require and would not like to hold. I have even paid the cancelation fee and emailed them proof of payment and they are yet to respond. This Is highly frustrating and ********* on the part of vodacom. I am not able to even cancel the number in store due to some policy of the store and the telephonic company which acts on their behalf being different ! I would like to be refunded for their ********* business practices as this is utterly ridiculous. Every time you call they want to offer you some new service or the other but don't explain the consequences thereof and go ahead without you even signing any documents.