I need advice ASAP

[Tyler Gratto]

http://www.bladeforums.com/help/change-name/
After you pay, create a thread in Tech Support (select the Change Username prefix), and be sure to include the PayPal transaction ID. (Most people also put the old and new names there for reference, as well)
Be patient - it's done manually, and may take a week or two.

Thanks very much.

Do you know and or trust the person you are trading with? Does he have feedback on the forum?

It wasn't on the forum, it's on a high end buy/sell/trade EDC Facebook page.