The first step to solve a problem is knowing it exists. That's what “Am I overpaying” comes to solve; finding if there is a “problem” in customers’ bills by showing them how much they pay compared to other bills in their community (friends/people living in their region/colleagues and other geographic groups, broadening the circle to the global subscribers database).
users will be challenging each other through paying less according to the sharing policy, thereafter the rank of each user goes up when the less they pay. ‘Am I overpaying?” also triggers the fact that individuals lack the ability to manage their finances as well as assessing users’ market research.