Got a 2006 Signum and have 2 Flip Keys for it.
When I picked the car up last year, one of the keys had been well used and the buttons were a bit shiny. So I thought to myself, 'That can be the spare key.'

I put it in a drawer and forgot about it. Now for the trouble...... The battery in my main key went flat and wouldnt open the doors - and manually unlocking it set the alarm off all the time.
Went to Halfords in teh Mrs car and got a few batteries. I replaced the main key and it worked fine, and because the spare had been sat unused for over a year, I changed that one too.

The main key that I was using workes fine again now, but the other worn one doesnt work at all. (even with a new battery in it)

Will Vx replace this key under warranty or is it going to cost me? Warranty is until April 2009. How much for a new key if it needs doing?