If all else fails with the key unlocked you need to get a thin but stiff bit of metal in between the doors and find one of the locking cams or mushrooms. Then proceed to hammer them (up or down) in the correct direction.
Did you try this yet?
You need something like a wide (2") but thin and bendy scraper. Bend it in between where the doors meet and slide it up and down to find the cams or hooks.
Normally if your in the lower half of the door you would need to then tap it up and vise versa for the top half.[/quote]
not tried it yet gazman, gonna try it Monday morning if I do get the door open then it's not secure overnight[/quote]