Pre-recorded call to business line. Initial agent said name was (the generic) "Merchant Funding Services". Call is on behalf of "Sprout Partner" AKA "E Small Business Assistance". Web sites at http://sproutpartner.com which immediately redirects to http://esmallbusinessassist.com/
No name/address information obviously apparent on web site, and domains are privacy proxied. Appear to be the standard Merchant Account Advance Loan type company. Based in Florida (1101 Brickell Avenue, 8th Floor Miami, Florida 33131), however, I wasn't able to find a business registered in Florida under these names. Could be that I didn't search for the right things, but still makes me leery. Appears to have less than 10 employees. The sproutpartner.com domain is only about 2 months old, which is disconcerting to me as a potential client.
They appear to be looking for an unpaid intern to do social marketing (and craigslist?) for them:
http://www.internships.com/marketing/looking-for-marketing-intern-i6092364
If you get a pre-record, this should provide some extra information for your complaint.