Originally Posted by
willoL
I thought I remembered a similar problem, but it was a few months ago. While searching for my car rental for the same upcoming trip to Iceland, I found an email from my spouse complaining about difficulty entering data into the system for his Icelandair ticket. (Email equivalent of bellowing, "Why does this say I need a visa? I don't have a visa!") That reminded me of your post and I came back to answer.
I thought we solved it by entered the details using a different browser (instead of my usual Firefox, I switched to Safari) or maybe the app on a phone, but it was back in January so I couldn't recall exactly.
Today I saw the same issue on Firefox with my booking, but could adjust the APIS data in Safari. Have you gotten this sorted?
Just, I eventually got through again to the Online Chat, 'JP' was very helpful, he could see our DOB's but not the Passport Numbers which I supplied and he added them at his end, I asked if he needed our address on arrival in the US but he said no, so fingers crossed as it was infuriating as I'd meticoulously checked every entry I had made to the online API.