First time, huh? I'm sure you deserve the money. You worked hard for it. How'd they get your address?
Be sure and give them your social security number, all your credit card numbers, your mother's maiden name, bank account numbers, your ATM PIN, all your old addresses, belt size, work phone and everything else they ask for. Always send them any money via Western Union. Don't use the US Postal Service for anything -- that would just get the Feds involved, so use FedEx or UPS.
You'll get your 155 grand any day now, all the way from an internet cafe in Nigeria, "delivered to your door by a brown-shoe'd square in the middle of the night."
And your Caps Lock is on the left.