Probux is a scam earing system. I have spent over 8 months with a free account. I didn't upgrade my membership but I clicked daily and after 8 or 9 months I've just started earning daily about $1. Then suddenly they removed my account from their database. I am sure they focused on my account that I didn't invest here and started making daily $1. So they will also delete my account if I invest their desire amount... This website is totally a fraud and scammer...