I had a advertise in Marketplace about selling the coupons. And one guy PM me and tell me that he gonna buy all, but I'm a Newbie and I have to send coupons first. So I send a coupon, he sad thank you and never send me a payment. What I can do?
This is not fair. Who sad that a Newbie is not trustworthy?
Who can help me? thank you. Or is better that I forget everything? Until when I gonna be a Newbie?
What you can do is, post the PM conversation in YOUR post in the marketplace. Make it "public knowledge" that the person never paid you, by posting in the same thread YOU started in the marketplace. Then, go to the person's profile, and leave
NEGATIVE TRUST. Explain they never paid you, in the comment section on their Trust page. If they want the mark removed, they will have to pay you.
As far as being a newbie, you have to "rank up" with activity and merit points:
https://bitcointalk.org/index.php?topic=2766177.0