will aeroplan allow you to hold an award ticket booking for a couple of days or does it immediately have to be ticketed over phone? I know CO, DL will allow about 3 days to hold a ticket, so you can transfer points from amex into your account.

If so, what is the max amount of days can a booking be held for before ticketing?

Are you allowed to make changes to reward booking without penalty up until 21 days prior like Continental allows?

thanks.