i've never seen anyone that has been able to transfer more than two, regardless of age.

Australia is far more tightly regulated in terms of assisted conception - there are ethics committees set up to ensure it is not abused in any way. i don't believe transferring more embryo's increases your chances as much as you're being told. individually, each embryo might have a 20% chance of taking, but it only increases your pregnancy chances by a couple of percent for each embryo transferred.

FWIW - from what has been said, if an embryo doesn't survive the thaw, it had minimal chance of surviving to become a viable pregnancy anyway