The Airlines Refused to Allow me to Board the Plane with my Valid United States Passport also a Valid Fully Vaccine Card along with my Round Trip Ticket under 30-Days to Return, I EMMEDIATELY CALLED JUSTFLY To make Another Reservations they Assured me I can change my Flight, But when I called back a few days later they were Trying to Extort me for my Money #1). THEY TOLD ME: THE AIRLINE THEY USE WILL ONLY CHANGE MY TICKET IF I "UPGRADE TO A MUCH MORE EXPENSIVE FLIGHT COSTING ME OVER $2,000. MORE... #2). I PAID CLOSE TO $1,400. FOR MY TICKET,...NOW THEY WANT FORCE ME TO PAY FROM $3,000. TO $5,000. FOR MY ROUND TRIP TICKET ( I WAS TOLD OVER THE PHONE). #3). THEY TOLD ME IT WAS NOTHING THEY COULD DO BECAUSE THAT IS THE POLICY OF THE AIRLINE THEY USE AND ONLY ONE THEY CAN FIND BUT IT WAS MUCH LESS EXPENSIVE TICKETS AVAILABLE EVEN NOW. #4). THE AIRLINES HAVE POLICY THEY MUST PAY INVOLUNTARY BOARDING FEES DOUBLE AMOUNT I PAID NOW SEEKING THE AIRLINER POLICIES OF GETTING DOUBLE MY MONEY BACK WHEN BEING DENIED TO BOARD THE PLANE