Who's the user? Is it someone trustworthy?
This all does seem a little sketch because you've only been on the forums 3 days. Anyone who comes straight in asking for money is usually a scammer.
I would be willing to confirm order/identity if you PM me a screenshot of your order, showing shipping address, and a copy of your ID.
Edit:
Are you not selling the rig? I looked through to see what else you posted and found this thread.