Worst Billing Service

I signed up on the 1st of September 2019 and got an offer to get a promo bag and to only start paying on the 1st of October. To my surprise my account was debited twice for R250 in September and requests for a refund were fruitless. I then contacted the sales consultant who signed me up at Virgin Wynberg and asked if they could credit my account with the money that was debited and he confirmed with syste screenshots that it was done. On the 15th of October my account was further debited R250 and I reversed the debit order but my bank had already charged me R90 for this making it R180 for the debit order mess since the first debits. Today someone from the HO called me again and was very rude telling me that I authorised these debit orders and refused to listen to anything I had to say. I am totally disappointed by the service I am getting unfortunately I am bound by a 1 year contract.