When I bought my Hamilton, there was a scratch on the back of the lock, but I just left it since it was a brand new bag from the storage and the SA was nice, I didn't want to give her a hard time, and I know that overtime I'll probably do even more damage to it... lol! I'd say leave it, esp when you got it from the States, the cost of shipping it back & forth isn't worth it, plus people won't notice a scratch on the key...