I would do more than request reimbursement. I would insist on it. It's not like Independent Holidays doesn't know about Cryanair's policies. No, they screwed up, and didn't provide you with the information you needed in order to travel.
They should cough up, as a minimum.
You may have to threaten (or even go to) small claims court, but they need to be taught a lesson. They screwed up, you didn't.