Keep this quiet, but anyone can get in to the under-bed storage area.  Insert a screwdriver into the locks and they turn easily.   

Another problem - you can't leave the flap open with a bunch of keys in one lock.  You don't want to anyway!

Different locks  were odered from Autotrail.  You unlock and the catch pops out.  You lock it while it's  out and carry on after taking the bunch of keys elsewhere.  When you're ready to lock the flap, turn the catch and push it in.  No keys!  Nothing easier!

Why couldn't Lunar have fitted the Autotrail locks?