How to know if the client has asked for changes, I submitted payment request 3 or 4 days ago. He has asked me to do some changes on message, I did them. He said he will review the work. Now since I have submitted payment request the amount is in "Review" Column, Does it go back to "Work in Progress" if the client has asked for changes? I didn't receive any notification about the changes that he asked.
When you resubmit work on a fixed price project, it resets the 14 day review period. If they want further changes, they'll tell you. If they take no action in those 14 days, you get paid automatically. Just keep in mind that every time you resubmit, it will reset the counter.