From the 1st November it seems Ryanair intends to charge £6 per flight per passenger for paying by any card online.
That amounts to a charge of £24 for two people booking a return trip.
The airline has announced that it will provide reimbursement in the form of £6 travel voucher(s) if they use the Ryanair Cash Passport card which is a prepaid card type.
See the Ryanair article here:
http://www.ryanair.com/en/news/ryanair-launches-branded-prepaid-mastercard
For more information on how to apply for the Ryanair Cash Passport please subscribe to my blog and I’ll keep you posted.