If the item dies, then they will credit you the amount back. Sometimes they may even reship.
I am no longer ordering, I wanted to pick up an matted(aptasia eating) filefish from divers den but someone else bought it thursday. I stopped at the LFS and was looking at their filefishes but no guarentee was given that they would eat aptasia. They started to feed the other fish and I noticed a CBB eating like a pig, so I bought him.
Check out ambrosia aquatics, Nick may still be ordering from his wholesaler.