In Reply to: Garuda flight change posted by JillieP on Saturday, 21. July 2012 at 16:34 Bali Time:
Did a search on Garuda Indo Perth office and it came up with this local link/contacts, you may want to give them a call, hope it helps!
http://www.whitepages.com.au/business/garuda-indonesia/wpb-perth-wa/B%7cW00W%7cfba64cd1%7cGaruda+Indonesia
Travelled Garuda heaps of times and have never had the cheapie flights you got, well done!