You can either just report a post or the private message and add further details, but this isn't something staff would get involved with. Open up a scam accusation if you really wish to proceed with this but it isn't a Meta issue.
I don't know if that really scam or not.
OP open 2 threads before, first in
https://bitcointalk.org/index.php?topic=4795083.0 scam accusation and one in
https://bitcointalk.org/index.php?topic=4794752.0 reputation, i read his story but he open 2 threads about same topic in different section. I think 1 thread is enough and he come to here to ask again.
Side note : just my advice but lock one of your thread, you post picture that already post in your another thread and its looks like spam for me. You can focus in one thread so no need to post in different thread.
http://archive.fo/mJOHLis up to you to take it or not.