 However, the ERSP Review Program (as described below) continued its mission of fostering truth and accuracy in advertising claims pertaining to coaching and mentoring services for potential income producing opportunities such as real estate investing, stock investing and work-at-home endeavors.ERSP details its concerns in an initial letter of inquiry and the marketer is given 15 calendar days to respond to ERSP with substantiation for the issues raised.ERSP then has 15 calendar days to ask the marketer for more information regarding its submission.