R50 door adjustment

[hemi265]

My back doors top frames flex a lot causing the top of the door to cause noise as they shake against the body. (slow idle speed only)
I thought I would try to adjust the door in on top hinge on B pillar to put more pressure on the tops, however I let off the hinge against the door but can't get any sideways movement on it. Is it just stuck, or is there no adjustment here. I found the same thing with the striker. There doesn't seem to be any adjustment here either.
What the best way to address this problem please?