Which key?

While away I needed to get in the van with the key.  It is  a Broadway 2014.  There was a radio signal blocking the usual mechanism.
I could not get any key to fit the habitation door.  I have the standard set provided by Auto-Sleepers.  Has anyone got a key to work in this lock?  If so which one?

Many thanks.

Safariboy

Yes. If it's the same as ours it's the one that fits the toilet flush door and the cassette locker.

We have had to jiggle it a bit though, and I seem to remember it turns the wrong way???

Same as Gromit but a 08 van.

Ours is obviously not  quite the same as these are different keys.  I thought that it must be the flush door/ side locker key but it would not turn.  I will have another go.  The cassatte locker has a special key with Thetford folded into it.