I recently found this website, they advertise their products with Google ads. Let me start off by saying their company is totally fake, Bitmain Switzerland AG is not a real company name, there is no such company registered in Switzerland, neither in Germany. Their address is completely made up, they do not have an office there.
Its a fake website who are trying to steal people's money. Actually their target is new crypto users who are planning to set up their mining rigs and looking for necessary mining equipments. They have purchased a domain which got two words "Bitmain" & "Antminer" and its because usually new miners search both name to get mining machines price.
"OP" I will suggest you to visit this sections pinned post area at the top where you will find topics about "Proper scam report guidelines". Just follow the proper format for editing your main topic and include all necessary details.