Sam Fensterstock Commercial Credit & Collections Solutions Executive at AG Adjustments. AG Adjustments is a second-generation commercial debt collection agency. For over 45 years we've had experience delivering excellent results to our customers across all industries. Their seasoned staff have been with the company for an average of over 10 years – that’s 3 times longer than the industry average. This means you’ll get access to some of the most experienced professionals in the industry. You’ll have a personal connection with the collectors assigned to your placements, and have the ability to communicate with them directly online in real-time about the ongoing status of your case.