Disappointed customer

Worse experience ever, no accountability, no respect for. Customers at all!! I have a contract with Cell C and my agreement with them was to debit at the end of the month, come Dec they sent me msg telling me that my debit order will deduct on 27th Dec I called their customer care to query the debit order date they said if mine is month end I should ignore the sms it's circulated to All contract customers, till yesterday my biggest surprised for January I'm being charged R70 extra as late Dec payment penalty, again I called to query the consultant said they were sorry for the inconvenience, refused to transfer me to the next person for clarity and way forward. When I asked her name she said "Cebo" and refused with her surname. Cell C u are the worst service provider!!