I took a contract out at CARPHONE WAREHOUSE with vodafone. 3 days later I had to return the phone as the operator could not connect the phone. I returned the phone on the 13 feb 2016 and on 20th Jnauary 2017 carphone warehouse eventually notifed Vodafone that I had returned my phone in February 2016. Their explanation was that as I had been given an incentive to take out the phone and had not return it they left the contract open on purpose. I had no phone and contract during this time and they also re-allowcated the phone to someone else. The voucher I got on the day of signing up was used as an inducement for me to take out the contract and at no time did they tell me that if I return the phone i would need to return the voucher. When i returned the phone I was not informed that I needed to return the voucher or my phone would not be disconnected. Nearly 11 months later now i realise what they have done. So my advice is never take out a contract with CARPHONE WAREHOUSE they cant be trusted and are perfectly happy to swindle you out of your money. It has effected my credit rating and CARPHONE WAREHOUSE DON'T CARE. there attitude is tough they dont return calls and ignore internal emails. Muzza