It seems that this is a new, sophisticated and professional scam. New people cannot understand these issues well. Please stay away from it. Nobody gives us anything, try to work.
it's not as sophisticated as you thought
actually it's pretty simple, they set up everything to fool a targeted victim
the site is probably owned by the same person (or a team) who asked you for the help
yes... stay away from using any non-wellknown sites no matter how good the deal is
good chance it is just a newly created fake site to lure and trap gullible victims