Adjustment isn't a good idea if internal parts are bent and it sounds like more than one part may be distorted? However, you may be lucky on the window that the glass has moved on its clamps. There are bolts tensioning the glass clamps that can be loosened allowing some adjustment. You should find some info here if you are up for a challenge:
EOS Rear Window Remove/Install Post1 of 2 long posts
EOS Rear Window Remove/Install Post 1 of 4 long posts On a difficulty scale of 1-10 I regard this operation as level 8, with a high possibility of collateral parts damage. These are my instructions, I think there is not much in the VAG operation procedures and of course EOS rear windows are...