I am trying to select seats on LATAM purchased with Avios through Iberia. I can pull up the reservation through the above tricks (Air Malaysia and Royal Jordanian) but AM does not show an option for seat selection and RJ allowed me to choose one then gave me an error. Any ideas how to get a record locator for this reservation. Iberia, as you all know, has horrible customer service and I can never even get them to respond to an email; twitter; or Facebook message. Any other tricks would be appreciated.