May 17, 2013
After calling the offending number back over and over and threatening them with legal action, I finally cajoled them into giving me the name and mailing address of the company. It's First Credit Online, located in NJ. Here's the website: http://web1.firstcreditonline.com/main.asp?page=ContactUs
They advertise as a collection agency for gyms. You can reach their home office at 1-800-606-7066 Ext. 2019.
I called after business hours, but I plan to call repeatedly tomorrow during the day. It's not how I planned on spending my day off, but I bet you anything they'll be more responsive to a threat to call the AG's office then the Indian call center was.
Here's a resource on your rights as someone who's getting harassed by a debt collection agency: http://www.consumer.ftc.gov/articles/0149-debt-collection