I regret ever getting a contract from Cell C

I closed/paid of my Contract with Cell C in December 2014, on the 18th to be exact and change my number to be Prepaid, 5 months later the debit my account without any explanation of receiving an invoice or statement. when i call the customer service they say i used the sim card after closing the account, i mean it was a prepaid for heaven sake, then i ask for a billing statement to my suprise the amount is not the same as the one debited from account, I call again to get clarity on what happening, that was last week thursday, they give a reference number and tell me they have open a case and they will contact me in 48 hours... Guess What, up to now they have not contacted me, and i cant go through to their accounts department, to add salt into my wound, the have listed me.<br> <br> I wish i can open a ******** case....