Fil-Tec threads (such as Glide and the pre-wound bobbins — some of my favourites) aren’t easy to find in Australia.
If you’re in Australia, try http://bluerosequilting.com.au/. The owner of the website is a quilter in Bridgetown, Western Australia, and will mail anywhere in Australia only.
Update Sept 2020: In Perth, try https://www.fromthefirststitchtothelast.com.au/ (online or shop in Wangara)
We stock Glide Threads at From The First Stitch To The Last in Wangara,
Western Australia
Thanks for letting me know. I’ll add it to the list!
–Rhonda