So i just started the Main Quest: Imperial Audience and picked my cloths out, but every time talk to the chamberlain he starts talking but doesn't move, i can't move on in the story because all the doors are locked. I've restarted everything and still have the same problem, even loaded from an early save..nothings working what should i do, as anyone else had this problem.

It might be a good idea to post it into the Witcher 3 section, not the second one.

have you equipped proper clothes and learned to bow?

I also have the same problem with the chamberlain he dosen't move but speaks so cannot go any further in the game :(