Good news all round then Phil and Simon.
I know about the draining of the battery trick as about 2 years ago me, my whole family and some close friends went on holiday and stayed in this old fashioned cottage in a small quaint village called Colwall in Malvern. I was the last to park onto the drive so everyone was boxed in and it was very quiet and peaceful. Next thing, I've changed the fob casing and the battery and it won't unlock or lock, its just stuck there. Opens the door with the key, alarm starts screaming, couldn't shut it up. In the end I called remote key who I had bought the casing off and they told me the drain battery trick and it worked first time.
Everyone was panicing as they were all stuck on the drive and I had blocked them in :lol: :lol: