My passenger door isn't opening either. It started off as intermittent but now it just won't budge! (3 door)
Spoke to the master technician at VW today and he came and had a look. They've ordered a new lock etc.
I asked the question how to get the door open and he says firstly we will try with 1 person outside & 1 person inside pushing and pulling whilst trying the handles! If this fails they will take the window out and get to it that way?? Says its a tricky job, about an hours worth off messing about but that's how they've done it in the past.
When I mentioned I'd heard of people having to cut the door skins or panels he said that was a bit extreme and hasn't had to do that.
We'll see, it's in next Tuesday!!