Dissatisfied with cancellation process

I took 2 phones on contract with phone choice on the February twenty seven , I logged a fault for repairs on the Five March , the screen went blank, I could not use the phone, I returned the phone and asked to cancel the contract( consultant Theo).Twenty March, got a message saying they are returning the phone, I called and spoken to the Supervisor, she told me they will cancel the second phone as it was factory fault. I called again , I Spoke to consultant ,to check if there will be fees for cancellation of second phone. She said the phone will no longer be cancelled, the warehouse returned to admitting factory fault but was returned not in a good condition, as per contract. I had the phone for only six days, the phone had pouch, what condition are they referring to? she said it was in use. It had to be in use because I would not have know if its got factory fault had I kept it. She concluded they will return the phone, I told her I will not take it because I was given fourteen days to test the phone and cancel the contract if not satisfied, in this case I am not, who knows it will have another factory fault in weeks time. This is ******* and it is not acceptable.