Vodacom Account ******

Vodacom in error took R5395.78 out of my bank account after not completing paperwork on their side. They need to do a refund for R3019.00 and promised this would be done in 5 - 7 working days REF:1- ********** ********** . Not one person has bothered to call me back and now i get told the person who made the promises of a refund was lying about the turnaround time!!! Vodacom service sucks and when my contracts expire they will never be renewed!!