The final two from KIWI finally ticketed, around 5 hours later. Can select seats. 3/4 reservations I can also make changes to other flights online, but one says it was made from OTA and to contact OTA... lol?

For adding Delta FF # , I tried calling LATAM but got put on hold, and got disconnected. SO I Sent them an email to see if they can do it with my booking codes. Will report back, but so far it seems the work around it to just use an OTA and pay extra. Lots of foreign CC issues with latam