Moderator Communications Coordinator, Signatures
Join Date: Apr 2001
Location: deep within the Eskimo lair
Programs: TubWorld, Bar Alliance, Borratxo Legendarium
Posts: 16,970
I'm pretty positive it's a mistake in the verbiage. As long as the miles have already been deducted, you should be able to check in.
I think its supposed to make reference to those wanting to redeem miles at the airport for an upgrade.