pay back my money

I have a cellphone contract with telkom. after accepting what i thought was a good deal i have been **********. During the point of sale in November i was told they were going to debit my account prior to me receiving the product and i was OK with that. I was told it was the first debit order. Imagine my surprise when in December i was told they going to debit twice for November and December. When i called the call center I was told about Pro ratas that were not discussed with me during the point of sale I was also promised that I will get my money back either end of February or March. Today i get a statement saying i need to pay. Kante where is the money that i was supposed to get in March. Your services was great until now. I cant wait for my contract to end with this company.