You will not get any money out of Ryanair. They are not know for there generosity
You are aware with you a lot of time (~3 months)
I hope you are fully aware of your Rynair air ticket t&c's, practices and do not expect it to be like a USA airline (~luggage & carry on included)
While on the BA forum this thread gives a guide to EC261 / 2004
https://www.flyertalk.com/forum/brit...61-2004-a.html
AA thread (with wiki) but less useful
https://www.flyertalk.com/forum/amer...er-thread.html