Please PM information on 3 digit. Also PM whether or not the 4 digits with original email have .com email addresses (not country specific, just a pet peeve of mine).
I got this guide for free, although I had originally planned to buy it.
This guide is not very reliable. Though the method is sound and is probably possible, it is highly unlikely that this will be a constant source of money. This is, however, working and legit.