It may also be that the lock (and suitcase) were roughly handled by luggage apes and the lock is actually jammed. If this is the case, try finding a similar model in a store or pictures of the loc...

I live in a super micro flat with two cats. The three of us share a 2m x 1m bathroom. I've found the best place for their cat pan is in the shower. I leave the curtain open about 6 inches and th...