Unhappy Customer

I ordered a fingerprint machine for my company on the 3rd Jan 2020, Received 07 January 2020. I opened it and i could hear something rattling on the inside, so about a few hours later, a sent an email after trying to call. I received a response on the 9th Jan 2020 , I responded with an attachment of my receipt of purchase. Subsequently, I have been emailing dd10th and now today the 14th, to date I have not yet receive a response, with any details of any kind of a response to my problem. What am I to do when this was specifically ordered for work purposes and now I look like a fool as I recommended Snatcher to my Boss and I cant use the product. And Snatcher doesn't even respond to my numerous emails.