Vodacom back office very *********** , they dont care about people

Vodacom still fails to resolve my issue below and im being sent from pillar to post (Agent points me to back office and they just close the queries logged without giving me feedback ) and come month end they are number to debit my account - while they still owe me money . Im so Frustrated and disappointing with Vodacom and would not advice anyone to use their services . there is this Jacob who closes everything i log without calling me or updating me .

I took a contract online around February and cancelled it before 7 days , vodacom went ahead debited me for that contract month end . It has been painful process trying to get my refund and the call center agents are not helpful/Competent at all and always tell me about back office . Last month i was told the money was reversed into vodacom account and that there is nothing owed to me while Vodacom is still debiting me every month and when i call again its a different story. When i call today they gave me attitude and require bank statements from me . How hard can it be to refund my money into my personal account what you should have not debited in the first place . Its over 3-4 months now with a simple issue . Every agent promises are empty and they dont care about customer since its not their money . I guess the best thing now is to cancel everything and move to another network since they dont value me as a customer .