I got overcharged too on the Sun a couple of weeks ago. Hubbie and I had premier package. Daughter didn't. prebooked hot pot restaurant and crown grill in the app a few months ago. My CC was charged $90 for my daughter's cover charge. Our crown grill reservation was on the last night of the cruise. When I got the final folio, off the ship, they added a $106.20 cover charge. I have called Princess and they created a claim and someone to email or call me back within 48 hours. if not, I will have to email