Scams are not moderated here, unfortunately.
If you attach evidence (such as payment receipts, conversations, and other supporting things), people will help you carry out investigations and (if proven to have scammed) DT members will tag the scammer to prevent others from transacting with him and give you advice that might help you get your money back.

I will quote important things that you posted in another forum, so everyone can see it here too.

Video of your conversation https://www.youtube.com/watch?v=MgUl5XfVm5U ~source
You quoted a link to a thread on this forum where it was made by user @Naster, is he the guy you're accusing?