Hiya!, Sorry it's taken me so long to reply, now everything is packed up and sold or given away, I am having to use my friends' pcs whenever I can. Things are mad for us right now, as we are on our final farewells (we have 2 leaving parties this weekend, so think we will be drying out next week!).
We didn't use an agent and we applied for part 3 of the 457 on line as soon as Guy's company got the TRA. Once we'd had our x-rays etc, we had the approval after just a couple of weeks. I really hope yours will come back soon. The waiting is horrible, but am sure it will be worth it!
Fingers crossed for you,