By default In probid you as admin can enable Selere verification , once user pays XX verification fee they becomes verified, but that has nothing to do with real verification like a proof of identity.
This mod will create new way of users verification (manual one) User can request manual verification, you as admin can set a fee of it or make it free, can set expire period, and make it mandatory or now, also if you run in acount mode, you can refund the fee to users balance.
So once user requests verification you as admin get notification to email with username, email, address and phone for user verification. And user also gets an email confirmation that he has requested manual verification.
Later you as admnin can verify user by emailing him real post mail or checking his paypal details with registered details at your website. In simple words you can verify user as you want and think of. Once you think this user is real. In Users management page you can manually verify/unverify users.
Once user verified he gets email confirmation that his account was verified. Also once you unverify the yser he also gets email confirmation that his account is no longer verified.
If user will change his acount details he becomes unferified automaticly and email is sent to him with a notice that he has lost his manual verification due to acount details changes.
When user gets verified all over the website next to his nickname new icon is displayed that he is verified by website staff and are safe to trade.
This mod can make your website users more trustworthy to work with each other.