[JLM]

I can tell you 99% that the deadbolt is not locking. have them yry unlocking both locks from the outside. then shut the door. then try to open it.
then lock the door lock only close it with someone inside the camper. have them open the door from inside step out close the door. at this point the door should be locked and need the key to unlock it.
if that happens it is working as it should. if the dead bolt turns itself and locks by itself call a priest.. they have bigger issues.