I understand there are some negative review, so when I got message from BA that my return flight got cancelled, I was in a bit panic as the phoneline was far too busy and very long que waiting. So I decided to send an email to request a new flight. I was so impressed by the speed of response, within 24 hours , I got a reply and got an offer of alternative flight without any problem. Supper smooth and excellent service. So maybe use email will be a better option. I will definitely recommed Travelup with confident . Their price is very competative as well. Thank you for your support.