Ridiculousness Billing

I signed up for Cell C contract. Within a few days of the account already passed usage of R2700.00. I have excess to unlimited WIFI internet and do not need that much cell phone data. Customer service told I exceeded the data usage. I removed the sim and replaced it with a prepaid. The contract sim was blocked. CELL C again deducted R3030.56 from my bank account. Now I was informed that I agreed to have the account debited every day up to 5 times with a amount of R17.55 for a smart call technology solution. The billing was done throughout the day and also in the early morning hours. I have never made use of such a service nor do I know what it is. I have contacted Cell C several times in this regard. No response: Only got, Your query has been forwarded to our Contracts Department, who will contact you within 2 business days. Recently I got a call from a very unprofessional Cell C legal department person threatening legal action if the account is not settled immediately. After explaining the situation to her she simply dropped the phone in my ear. <br>