Pro Market Target Invoicing scam - NOTHING PURCHASED OR AUTHORIZED! columbia South Carolina

We received a phone call from Pro Marketing Target, claiming to be our Search Engine and stated we have an outstanding invoice.  Jessica Banks was very sweet at first and asked for my name so she could fax me the invoice.  After review the invoicing and talking with the owner, no purchase or authorization had been given.  We use a local company.  I called Jessica back, and the pleasant person was no longer there.  First there is no company, you get an answering service. Then a phone call back, where Jessica attempted three time to play a recording which neither myself or the owner could hear.  She accused us of not hearing, no volume and threat to send us to collection. Pro Marketing Target is a company just out to collect funds for no service provided.  Our search engine has not been affective, due to they never handled it!