No service from Cell C to resolve issue.

I cancelled a contract with Cell C in February and my account is being debited to date for a sim card on that said contract that I have never owned and was never aware of. I called on the 21st May and am still awaiting for Cell C to get back to me regarding the charges. I have called every day this week to no availe the consultant that I first spoke to Kutso must help me according to all the other consultants I have spoken to since monday I have left messages for her to phone me back on my work number and has not done so. Very dissappointing Cell C does not even deserve the star.