If the door is stuck shut you need to hope and prey that it will open otherwise the only way in it to cut the door kit. Not good. I would make sure you get yourself a new lock module, either from ebay or the dealer first before even attempting to get the door open. Because once its open do not shut it again.
Mine took a good 10 mins of locking/unlocking, banging the door and pulling handles before it would open. I know some haven't been so lucky and it has stayed shut but then has randomly opened again a few days down the line.
Just makes sure you have the spare and keep trying to get that door open.