I want answers

I was called on by cell c consulted and i was a offered a cellphone deal. In our agreement it was a cheaper phone that cell c has with less data and minutes becouse i wont need them more data as i have a router at home. Now 3 months done the line when i check my statement i now see that i have a number that i dont know unders my contract phone when i know i have 2 contract with cell c. When i received the phone, i opened the box and there was one phone and one simcard, i even called cell c just to ask which phone is it just to double check if i received the right phone, then she confirmed that its a Huawei y61, but to my surprise I am now paying for a phone that i dont have, when i call them, they don't give me clear information. I made a enquiry with them on the 31st of October and i was promised a 48 hours resolution but now its over a month and i have not heard anything concrete with them. Am the one doing the calling and they never bother to call and give feedback on what is happening. I cant be paying money for something i dont have have. How is that i gave clear instructions to i want a 1 cheap phone and end up paying for 2 phones that 1 i did not even receive. I want answers and i want my money back for the phone am paying for.