Disguising customer service

For a company so large, they forget the little people. When a contract has ended they still debit your account. When you call them for a refund you are told 21 working days. After those 21 days they are of no help. Calls are recorded and i want Vodacom to explain and refund what they promised. Covid has hit us all hard. They are quick to debit but reluctant to credit! Most unpleasantly unsatisfied with the less than satisfactory service we have recieved.