Playstation Plus Free Games?

I downloaded little big planet as my first free game' then a couple hours later I went to download wipeout hd. It said it was downloading but it wasn't in my downloading games under network. Then I went to back to the playstation store and welcome back said that I didn't have any free playstation games left. After this I went to my recent downloads and it had little big planet but not wipeout. Any ideas on what happened? Anything would help thanks.