Pro Target Market Pro Target SEO scam - Reported I owed them on an invoice for service I signed up for; I never did

 I received a call saying that Pro Market Target is trying to collect on invoices past due for SEO services rendered.  I said I never signed up for this as I do not need that service.  I asked the lady to verify who would have signed up for this. She put on a recording that was barely audible and could hardly hear the name. I believe it was coded in as it did not sound at all like me and I would have never agreed to anything on the phone.  I asked her to provide me evidence that this occured.  She wanted to get my credit card at that time. I refused and asked for documentation that shows I agreed to this and that services were actually done.  The call ended.

Today, 11/26/13, the "collections" department called again saying they had sent the information. I had not seen anything and said it was a scam and do not believe any services were done.  I searched all emails inbound from the company and saw nothing.  She said she would send again. This time I did receive it. It was a very basic pdf with no real 'data' showing any work had been done, etc.  She said she would litigate our case.

I will not interact or pay this company as it is purely a scam.  I forwarded this information to our IT and Web Manager (outside provider) and verified that the data sent was not accurate and was just a standard set of websites.  Our website had not been 'optimized' at all during this "timeframe" that Pro Market Target stated.

The invoice they say I was sent is over $800.  Purely a scam!