The fucking movers lost some crucial pieces of my book-cases!

Call them (or their company) back and make a claim. Worst they can do is laugh at you, or send goons over to your new house with a severed horse's head to put in your bed, or... forget I ever mentioned it.

True, that is the worst. But it is the unlikely scenario. More likely they've got a bunch of bits of a bookcase hanging around in their van and they can't remember where they're supposed to go. Give them a ring.