I have been using Blue Air a lot since it is the only low cost airline flying from Heathrow to Bucharest. EVERY SINGLE flight I bought was either changed once or EVEN TWICE or it was cancelled. They say they give you the option to change or cancel your ticket, but if you cancel and ask for refund they never give you the money back and they never answer your emails. Reaching them via phone is both difficult and very expensive. The fact that every flight out of over 15 I have had with them was changed is also a big inconvenience because I organise the flights to match my work schedule too and they give very bad alternatives. If you have any other option for your flight, it is worth paying much more towards a different airline rather than flying with Blue Air.