Content services (Basebone)

last moth I logged a query with Cell C regarding the content services they have been billing from my account, they said I must unsubscribe using *133*1# which I did. They further sent an email confirming that I have unsubscribe from the content services, this month they sent me a bill which overcharged again and it has content services they further added R97.78 for smart internet data. I called Cell C to advise them that I am still being charged the content services and I did not buy any data, I have not been using the sim card for 3 months now. Cell C has a bad services, even its agent when you call they just tell you that everything you want to know is in the statement, they don't want to even try to look into your problems. Client service is bad and I am looking forward to end my contract with them.