Concerto

I paid for €5.40 for the outbound (Ryanair price was €13). For the inbound I paid €23 (Ryanair price was €26). Still a bargain for a trip to Berlin!
It seems the OTAs periodically make offers for using different cards, or for paying by direct bank transfer. Enfin, if I get into trouble in a week's time, I will certainly post here about it. But according to Ryanair's website, the bookings are live and I'm good to go.

Just a question about Ryanair, though. I see online check-in now costs €4, which it wasn't in the past. I presume there is a period just before the flight when OLCI will be free, maybe 48 hours. I haven't paid for seat reservations either and I am expecting we will get split into two middle seats, even though we're both on the same booking reference.