Bought a Magnum Plus lock today with the free vouchers I got on top of my Bike2Work value, and was just going online to try and register it as it says they'll pay you if the bike's nicked whilst using the lock. Trouble is, they want the original sales receipts for the bike and the lock (both on the same receipt) sent to them by post, and since it's the only receipt I have I'm VERY reluctant to send it off. In addition, they want household insurance policy details too. Is it worth it ? Or should I just go with the bike cover on my household insurance policy and avoid the hassle ?