Getting quite confused with this and can't seem to find a straight answer online.

Looking to redeem some miles and want the kids (under 2) to also travel. Can't seem to redeem miles online for the children and according to the CX website I'm told to call Asia Miles.

So I call MPC and AM and get two different responses:

1. MPC says I have to purchase a full redemption ticket for the infant. They say that while it will be a lap infant you will have also purchased a seat for the infant as well.
2. AM says I make the redemption and then call reservations to add an infant on the ticket and pay the additional fees (infant ticket price and taxes, etc) but they don't know the cost.

Looking for some clarification on the procedure. I think 2 is right, but can someone confirm?

Thanks in advance.