Just to confirm, you paid 10k SkyMiles for the lap infant ticket? I thought that could only be paid with $. That's a very good deal if it's true, as it usually costs $250-500 for a lap infant ticket to Europe when the parents are in J. The only times I got $100 tickets were when I bought Y tickets and immediately upgraded to J with GUCs, but the agent processed the lap infant ticket based on the Y ticket price before the upgrade.