Do not buy tickets from them. Even with a some support request, they are trying to fool you and charge you extra. Also, when you ask for help; "Our systems are not working right now, call me tomorrow." they are deceiving you by saying.
I had to talk to them for hours and hours, but they did not solve the problem.
Although there is a different kind of information on your web sites and they write on their web pages that the little changes they make are free of charge, they would have to pay extra money to fix their information.
In particular, do not take out insurance, a return guarantee or anything. I paid £ 327 for a flexible ticket, they said they would pay £ 86 when I wanted to cancel the ticket.