We are on the August 17, 2024 seven day sailing from Athens to Barcelona. We are in the Signature Suites and purchased the Premier Package. Two Questions: Do you need to make dinner reservations for the Signature Restaurant. Princess App shows no availability. Believe I read no reservations necessary. 2nd Question: Supposed to get 2 Speciality Restaurants free, but credit card has been charged a "cover fee." Can anyone explain? Thanks