I cancelled the first flight online and the second on the phone. I requested the redeposit on the phone, but for the online cancellation - it said online that it would be re-deposited. Unfortunately - they never sent me an email confirmation. Neither of the reservations show up in my reservations as cancelled. All I have now to prove are confirmation numbers and the fact that the miles were taken out of my account on specific dates.
I do need the miles now as I am booking Australia flights in First for multiple people and there is availability.