Hi. I received a letter from Arrowhead Promotions & Fulfillment saying I had won a $500 gift card plus a year's supply of Woolite and tips from Stacy London. The letter had space to check which gift card I want. They also enclosed the rules of the contest which state I have to return an affidavit within 14 days, but there was no affidavit! Is this usual? I've only won small things that just showed up in the mail, and this is my first big win. Hope it's real! Telema