To contact Princess Cruises regarding a refund, you can call their customer service number: +1-855-732-4023 USA or +44-289-708-0062 UK.
For bookings made directly with Princess Cruises, you can also visit their Customer Support and Information page on their website for details on how to request a refund+1-855-732-4023.
If you booked your cruise through a travel agency, you'll need to contact(855) 732-4023 your travel advisor to process your cancellation and inquire about refunds.