I have had this problem with several caravans over the years. The first time, I paid a fortune to a local dealer to fix it…
The next times / next vans I did it myself.
It is fairly easy (apart for taking up and refitting the carpet).
I took photos as the time intending to document but I never did. If you are interested drop my a line and with encouragement I might get around to documenting how I did it much cheaper than dealer.