Cell C I am very dis...

Cell C I am very disappointed in Cell C in August they debited my account twice 22 and 26th August I have been battling to get my money back I even spoke to a team leader that requested that I send him an email which I have done on 28th September and till today nobody has gotten back to me regarding my refund and I pay my contact on a monthly basis but they can just take my money and tell me it is payment for March of which I again paid double in February....how do they just take my money and get away with it. Is this day light ******* from our service providers that we need to deal with