Mark, I had to replace both original handles on my 2013 VS. I knew they were, uh, 'lightly constructed' so took extra care when using them, but after a few months they still adopted peculiar, although not unattractive, curlicue shapes that were inconsistent with the original design.
I found a pair of replacements at our local VDub aftermarket emporium in those all too familiar unlabeled plastic bags, indicating an ancestry that hadn't been fully documented. The level of finish belied origins far from German shores. But they were still different from the VS originals - these were about twice as heavy, but still cost only $12 retail. (I can imagine what the wholesale cost on the VS parts must have been.)
Long story longer, the splines didn't quite mesh with the splines on the door hardware - they were a bit loose. They fit well enough to work, but wrapping a few turns of teflon plumbers tape around the splines helped snug things up.
The point is, in this world of low-dollar offshore parts, quality control is nonexistent and the fit of these things can be all over the map. You may have the opposite situation of what I had. The splines on the handle may be too tight to slide home on the door fitting enough to allow the pin to align with the groove it needs to fit through.
The only fix would be to try another handle from a different source and hope for better Karma this time around. I'd suggest some meditation and thinking pure thoughts before seeking the new handles.
Madness, hell! It's a freakin' religion.
May God be with you.