Vodacom staff not giving any service!!!

Cancelled my contract in December,but the debit orders are still going off! Went to branch in Courtney str and they referred me to H/O in York str. They said I must collect all the documents from Courtnet str again and they must follow up with cancellations. Manager then said,sorry cant help me, need to go back to H/O in York str. Still no answ or any solution..... If you cant give a name of the person who helped you, they just say sorry and pass the bucket to the next shop/office. Really very disappointed in the service and attitudes of the staff. Surely they work/represent 1 company and if you cant remember a persons name, still help the customer. Its impossible to remember every persons name who gives you service in the country!! . A part from the debit orders, it is my time and petrol being used to go from on shop to the other and still no feedback/solution. Very unhappy customer!!!!!