In my opinion, it is the same official company linzhi.io or some employee who is behind these waves of scams, it is likely that they did not have money to start mass production and in this way they have opted for fast and free Financing without having to return it
Linzhi.io is legit, you probably got scammed by a phishing site, there are a lot of them pretending to be selling mining gear. It doesn't mean Linzhi.io is responsible for that.
Next time keep your eyes wide open and your brain very alert before performing such transactions.
If in doubt, come around the forum and ask members if any service is legit or scam.