DUE TO COVID TWO PASSENGERS CANNOT FLY SO I ATTEMPT TO CHANGE THEIR FLIGHTS I GET TOLD A FARE DIFFERENCE AND WHEN GOING TO PAY SCREEN THEY TRY TO CHARGE AND EXTRA £100 WHEN CALLING CUSTOMER SERVICE STAFF WAS RUDE AND TERMINATED CALL ON MY FACE STATING THAT WAS THE PRICES, I THEN CALLED AGAIN THE LADY WAS GOING TO CALL ME BACK AFTER SENDING SCREENSHOTS, CALLED ME BACK STATING NO EMAIL RECEIVED, SO RESENT AND HER AND MANAGER SAID WOULD CALL ME, NEVER CALLED BACK. THE FOLLOWING DAY I TRY TO CALL 10 TIMES EVERY TIME THE CALL HANDLER DOESNT EVEN SAY ANYTHING PICKS UP CALL AND THEN HANGS UP, THE SAME THE FOLLOWING DAY. ON THE 3RD DAY I CALL ONE STAFF MEMBER CUTS ME OFF WHEN EXPLAINING THE ISSUES, CALL AGAIN THE STAFF MEMBER KEEPS ME ON HOLD MOST OF THE TIME AND STATES NOTHING SHE CAN DO AND I WOULD HAVE TO PAY THEIR OVER THE PHONE PRICE, I ASKED TO SPEAK TO A MANAGER OVER 20 TIMES AND KEPTS HAVING THIS REFUSED, I WAS THEN TOLD THAT THE SYSTEM COULD BE CHARGING MORE BUT NOTHING COULD BE DONE, WHEN THE MANAGER FINALLY COMES ON THE PHONE SHES RUDE AND UNHELPFUL, TELLING ME THAT THE SYSTEM STATES I GOT A CALL FROM THE PEOPLE AND THEY EXPLAINED WHAT I WAS TOLD OVER THE PHONE BY HER THIS DAY WHICH IS A LIE, ALSO TELLS ME I GOT AN EMAIL AND DID NOT RESPOND TO IT WHEN I DID AND PROVED THIS, SHE COULD SEE THE SCREEN SHOTS BUT AGAIN TOOK NO NOTICE AS STATES COULD NOT DEAL WITH THIS AND I WOULD HAVE TO PAY THEIR OVER THE PHONE PRICE, BECAUSE OF THEIR PASSING THE BUCK THE FEE HAS GONE HIGHER AND AGAIN NO RESOLUTION STILL FLYING IN DAYS AND THEY DO NOT WANT TO HELP.