I recall reading from some people that TRU never got the Fallout 3 collection during their B2G1 sale last year.
Probably the only thing you can do is call them on Tuesday. You could also try price matching the deal at Best Buy since they would be more likely to have it.
For some reason TRU often has epic fails when it comes to carry collectors editions...yet they had a need to stock up on the highly demanded, very reasonably priced...halo reach editions...good game.