Was surprised to see a quasi OPC today. (Electing to pay with CC is EUR 5 more than all other means of payment.)
Well, they use sneaky language here. Instead of charging an extra fee for paying with credit card, they give you 5 EUR discount if you select to pay with one of their more liked form of payment
Interesting one is Paypal. I never tried this for air travel... but Paypal is linked to my AMEX... so, assuming I pay a flight via Paypal which in turn charges the AMEX... do I get all the travel insurance perks from AMEX? Or will AMEX say: Sorry, but you didn't pay the travel with AMEX but using Paypal?