This is happening on my board and I contacted backcountry and Im first going to talk to forum to see what theyll do and if that doesnt work out backcountry is going to replace the board...great customer service.
A side shot may be a little more helpful in showing the separation as I can't really see the issue with a top and bottom shot. Anyhow, like you said, Backcountry has a 100% return policy, so if Forum doesn't take care of you for the defect, just send it back to Backcountry.
I really cannot see anything in those pictures. However, the description would indicate that you do need to get the board fixed or start saving for a new deck. It really doesn't get much worse than that.