Time to replace the key fob badge as it has worn through again. I was tempted to replace the whole key fob but it seems like lots of people break the little glass immobiliser insert in the key fob when they try and take it out so I thought I would go the safe option and only replace the badge. I got some good quality ones from
www.keyremotebadges.co.uk and they fitted easily and haven't fallen off (within the last 3 months) despite no TLC - highly recommended.