Hi I'm separated from my ex wife, and I signed my car over to her, but unfortunately I didn't cancel the payments, for her to take over, I have just found out, that the last 6 months she hasn't paid a penny, I have offered to pay the debt off at £4000 in a week or two, but they won't accept my offer and want me to surrender car, which I refuse to do as I want to keep the car, what can I do.