Bad service. .incorrect billing. .

I can't get help with my contract on incorrect billing. .I speak with different agents I get different answers. .now I requested premature cancellation on my contract as now my credit profile is damaged by vodacom. .I paid the amount and documents to cancellation section. .I still struggling to get my cancellation been done. .I send many emails for assistance. .no one is responding to me. .I no longer want to be client of vodacom. .my cell ***...