Ryanair tells me that eSky put their email instead of mine on the booking record so Ryanair was not sending me info on online check-in requirements. They, evidently, have a 2-hour before the flight policy or you get charged at the airport for on-site check-in. In the States this is not the case, and airlines do not charge for on-site check-in. This resulted in my paving to pay an additional 55 Euros each person, which for four people was an additional 220 Euros. I am not happy about this, and eSky's emails never made this requirement clear at all that I was required to check-in on the Ryanair website a minimum of 2-hours prior to the flights or I would be charged. I have a receipt for 220.00 Euros. ESky's response was essentially "Too bad", you didn't "purchase our on-line check in". I didn't even see or notice that was an option or something that had to be bought extra when purchasing a ticket. I am not used to the European air travel market and didn't even realize until too late that I wasn't purchasing directly from Ryanair, which was my fault.