Repeated ***** on my account

I'm getting annoyed with Cell C, at this point I want to escalate this outside of Cell C. Customers cant be treated like this. I wrote a Complaint on this platform regarding the repeated from on my account by Cell C, a Male consultant calls me at 7 am( whilst driving to work) 25th FebI ask him please call back at 8 am. Nothing, he clearly decided Cell C has not irritated me enough, I can take me of it. Note, this is after numerous complaints with CELL C from November. Disappointing when you think how good a customer I've been with this provider. Cell C I'm tired of this get someone to call me ASAP. It is not right what you are doing to customers, I dont have a contract with you, I'm prepaid customer, stop debiting my account. You are abusing my information.