In a joint statement, the Carnival brands said they understood how disappointing the decision would be for affected guests and stressed they wished to express their “sincere apologies for the disruption caused”.
The statement added the decision to cancel the bookings had not been “made lightly”.
"Princess Cruises, along with Cunard and Holland America Line, has made the difficult decision to cancel some outstanding bookings made through Jetline Holidays due to its breach of contract," the statement reads. "All other bookings, including all P&O Cruises bookings, have been transferred to direct bookings."