Just booked through Delta (I found $345 first tickets trans-con) with my FB number so we'll see if it credits. I can always cancel within 24 hours.

EDIT: Seems like both issues tickets are start with 006. Any idea on how I'd go about rectifying this or at least booking with some assurance that they are KLM tickets? I can price out the same ticket on say, cheaptickets.nl in euros but there's no telling if it'll be a Delta-issued ticket, and they do not have the nice FAA-backed cancellation policy...

EDIT the second: Called the US KLM line, which is operated by Delta, and the person told me they can only 'print on DL stock' there, so even if I bought through the KLM line they'd issue 006 tickets, not 074's. I'll call the Dutch line tonight.