Sim Porting Rejected

Porting is rejected after cancelling contract and being moved to pre-paid over a week ago 11/4/16 Customer care says its still active- while Cancellations Dept says it is cancelled?? I have tried contacting Vodacom via mail on their website,but still no response...Please help, because the past week and a half Ive just been given the run around. ONE cannot simply deal with the level of incompetence from your call centers. So please advise.