S. Lanier Law Office Sherriff Mike Lanier; American Cash USA, Cash Advance USA Debt Collection Scam internet

I have been receiving emails from a Sherriff Mike Lanier of S. Lanier Law Office representing American Cash USA. The email is written in broken english suggesting the writer is from India or another country. The email is also extremely threatening (contacting my employer, etc.). The emails suggest that I have defaulted on an online pay day advance and can either pay them $789, using green dot money pack, or go to court and pay over $3000.

I asked for a debt validation letter and received a supposed loan agreement for a Cash Advance USA with a loan taken in January 2013. I have not taken out any pay day loans in 2013. There is no bank account information on the "debt validation"letter that I can use to verify or dispute the presence of a deposit in January. After searching the internet it appears that scams are being run using the green dot money packs and with Cash Advance USA. I believe this to be a SCAM. I have requested additional information from this Sherriff Mike Lanier and am still waiting. I have also filed a complaint with the FTC and with the Indiana Consumer Protection Service.