As I said in my post above, I've used them a few times.
I wouldn't recommend them if I wasn't happy with them. I've never had an issue.

Yea, I just tried to get a quote myself, with the same result, I've never had that before. It might be a result of the shipping restrictions in force at the moment due to COVID-19, I've heard of some stores in asia not shipping here at the moment because all practical shipping methods have been put on hold out of their countries to Australia.

the About us on their site says that they are Hong Kong based.
you could always email them and ask, I've emailed them in the past with questions and they've been quick to reply.