Billed for no product

After 3 activation requests on a new mobile data contract, the service was never activated and I requested cancellation because of this within the first 7 days. Within a week the whole package received was collected again. Now I am being billed for a product that I never used and no one can assist me!!!!!! I'm getting a bad credit name and paying bank charges on reversing debit orders because Telkom cannot do business!!! This is *****ing!!!!!