We made repeated efforts at the start of the BT Mobile 100 contract to set up the "free 2 minute calls between two phones on the same contract". First we were told that because we had bought through Carphone Warehouse rather than buying direct, we were not eligible for this feature. Eventually it transpired that it was OK after all, and after many calls to BT Mobile we were assured that this had been set up.

The bills are difficult to decipher. My husband and I are both intelligent, logically-minded people, but we could never quite make sense of them!

We went through every call on a recent bill and added up the calls which should have been free (between the two phones and for less than 2 minutes), and it appeared that they had in fact not been categorised correctly - instead coming off our minutes allowance. When we challenged them on this, it took repeated calls to get an answer, only to be told that 1) we had never had free 2 minute calls, and 2) that we weren't entitled to have them (the Carphone Warehouse argument again, which we had exhaustively explored at the beginning of the contract).

We will not be renewing the contract, and we do not feel we could recommend BT Mobile to others.

My BT Mobile 100 bills were never correct. I've had the phone for almost a year, and I am still waiting for my cashback which was due after month six.