UST Development, Inc. FAKE statement Ontario, California

I received an unfamiliar statement for a supposed invoice for $175.00.  I had not received the referenced invoice which was dated 3 weeks earlier.  I asked others in my company and no one recognized the charge and no one had ordered anything with that amount.  I called the phone number and got an elaborate phone tree with different departments but everything was voice mail recordings only even the operator line during regular business hours.  Website looked to be a listing of various brands of telephone equipment.  Finally I googled the name UST Development and got a report from someone else that got the same FAKE statement.  This is tricky because it looked like a Quickbooks statement and there was a phone number (albeit with voicemail recordings) and their was a professional looking website.  I had purchased 2 phones off the internet in the last month.  I wonder if that is where they got my company contact info?