I'm really sorry you were scammed. I don’t want to be smart afterwards, but...
I don't think you've done enough research here after all.
How have you checked BMK group company? someone sent you a picture of a date on the miner and you believed they were legal sellers?
Do you know that anyone from anywhere can register a company in Estonia? I am even very suspicious of their registration number 16167676, sounds like fun.
Also, how is the website just 10 days old enough trusted for you?
https://who.is/whois/asiceurope.comImportant Dates
Expires On2022-02-20
Registered On2021-02-20
Updated On2021-02-20
You also pay them in BTC, you are aware that this transaction can easily be anonymized and that it is difficult to trace the recipient?