Is Billing Solutions, Inc a scam?

I recently sent a Verification of Deposit to wells fargo from my home office and got a bill from Billing Solutions, INC for over $400. I have my home phone service service with cox communications. I have never heard of this company. Has anyone else out there seen anything like this? Can someone hijack your phone line? I have sent a letter to the attorney general in my state regarding this. $400 for one fax seems excessive. They have two websites one is www.billingsolutinosinc.net and www.bankvod.com. It also goes under bankvod.com If you have any insight on this company it would be appreciated.

Thankyou for your input

Consumer Dave