Window problem 2000 Passat

I am new to this forum so I don't know if this is a common issue... I did a search but found nothing like my problem.
My driver side window fell inside the door. I took the panel off and found out that the 2 plastic pieces that connect the glass to the window regulator are broken. Does VW dealers (or someone else) sell just these pieces or do I need to buy a whole new regulator?
Thanks

I think I will buy a new regulator from the dealer, but how do I replace it? Any instructions anywhere? It looks like my regulator (factory) does not use any bolts, instead is just riveted in place. Do I need to change the whole door panel?
Thanks in advance
Cristian

Not sure about the Passat, but it's a common problem on the Jetta.
If I remember correctly, it's just a small clip that breaks.