Few questions about updating asset in asset store

Hi, i would like to know do I have to always wait those "2 weeks" to update an asset if I want to:

1. Change only price.
   
   
2. Change description.
   
   
3. Add some more screenshots / videos.

I've posted this on "Answers" section but someone suggested to ask on forum also. So here I will ask one more thing. Lets say I have got multi tool and separated versions:
1a, 1b, 1c, 1d, 1e. Lets say every separated cost 10$, multi tool cost 35$. Is this possible to let upgrade to full version for 30$ if user already bought at least one separated tool?

 

So for changing price just send normally and the same day was approved. I didn't changed version and add in comment "changed price from 50$ to 35$".