How to understand Banggood's shipping options?

Hi FlashTom

I have just done another test…
I logged into Banggood and pretended to buy a flashlight.
I then selected the various shipping options available to me and this is how they came up:

Air Parcel Register - Free shipping
7-25 business days

Priority Direct Mail - AU$0.23
7-13 business days

EMS Express Mail Service - AU$12.94
7-15 business days

Expedited Shipping Service AU$18.52
5-8 business days

So it looks like the Air Parcel Register is the only free shipping available.
Next time I might try the Priority Direct Mail if it’s only going to cost 23 cents!!