Touran Removing and Replacing Seats

I have a 2006 VW Touran (I live in Germany) and the other day I removed the three back seats to haul some furniture. When I replaced the seats, I foolishly put one of the seats into the wrong rail - and it happened to line up with another wrong rail (it is in the left rail for the middle seat as well as a rail that I do not understand why it is present to the right of the left rail for the left hand seat). Now I cannot get the seat out so I can put it where it belongs.

Any suggestions other than taking to a dealer?

Have you tried using a lever? With the extra force you run the risk of damaging the locking mechanism, so you should pay attention when you use that pry bar.