Sweepstakes Audit Bureau Scam to collect money from individuals. Dallas, Texas

Receiving letter claiming unclaimed millions and I could be a winner. All I need to do is send $5 and send it in by deadline date or I will forfeit my chance for an opportunity 0f 12 million dollars plus. I have never had to pay any money to register for a sweepstakes, So I believe this was a scam and looked it up immediately on the internet and see  that others see it the same way as they do. I know $5 does'nt seem like much, yet it is if you don't have it and people prey on those like me who are looking for an opportunity to win in a honest sweepstake. Also imagine how the $5 paid by many can add up and what do we get? Most likely nothing! Who offers a sweepstake without a website, address(not just a P.O. Box), and no toll free phone number. I hope others read this before falling into the game these people are playing and take advantage of us who are looking for some free fun and entertainment.