They have huge prices.
Hi! Get the App 'resolver'' and file a claim! Also speak to their customer service on Twitter should be easy to get your money back.
Just a word of caution. They ditched me and my mate in Slovakia a couple of months ago, with the only option offered of a flight home in 4 days (with no hotel or anything paid for). They're still yet to reply to our claim for compensation, and I'm about £400 out of pocket. YMMV
Better be late (less or more:) than never fly out :D
Can't comment as mine weren't late. Based on experience, much better than Ryan Air