Removing popup blocking didn't help.

Cannot book via the app because it won't process my US credit card.

I cannot even call them because their US reservations number 800-223-7776 says that it cannot be used from my location (I'm in the US!), I've tried from landline and mobile phones. Other US phone numbers from their website either go to someone's voicemail, or get re-directed to the above toll-free error message.

Basically, AI doesn't want me to buy a ticket, or talk to them.

Any suggestions?