[mark_in_manc]

If there's a gap at the bottom but not at the top, I guess either the seal is deformed or the door isn't straight with respect to the fridge body. Can you shim one of the hinges to pull the door in a bit at the bottom, whilst not making it over-tight (and therefore hard to open) at the top? Or else (kill or cure) wedge it open 2 or 3" with a piece of wood, put a ratchet strap around it at the bottom, and try with a long pry bar and loads of load-spreading packing to bend the door out at the top and straighten it...