As a general comment most advertisers on Facebook should be viewed with suspicion, and any web site with your (or a) city name or Australia should be likewise suspect.
City and country names are used in their URLs to suggest they are local, but on inspection will rarely be in the same hemisphere. Exceptions to that will be found, possibly regularly, but if there is no physical address, phone number (accepting a phone number can be answered anywhere in the world these days), no ABN nor reference to Australian Consumer Law, and the T&C indicate the laws of [another country] it should become increasingly suspect as a scam - just how it operates remaining unknown. Will the money disappear? Will one get inferior products or a scam shipment containing a pencil when a watch was ordered? Were payment details stolen and used for unauthorised purchases or possibly sold on the dark web?
Those generalities being more widely recognised there is anecdotal evidence the T&C may not be truthful, so one needs to look deeper into where the web site is hosted and who owns it, followed by an internet search on its veracity before not after ordering.
