According to Frito Lay http://www.fritolay.com/real-v.....oupon.html
A counterfeit coupon for a free bag of Doritos chips up to $5 is still circulating, primarily through e-mail. The company reports that this coupon "was not created, authorized or distributed by Frito-Lay."
I recently noticed that coupons mailed to me from the company now have holograms on them as well, possibly added to make them more difficult to duplicate.
Excellent images are posted, showing the differences between the real coupon and the counterfeit one. These facts are true about a valid coupon:
* The maximum value is never $5 off a single bag
* Specific ounce weights are always listed
* There is always a 2-part UPC code (for both the coupon and the item)
* Offer always requires a purchase to get the free item
* The Frito Lay mailing address printed on the coupon should be One Fawcett Drive, Del Rio TX 78840
* Valid coupons are distributed in stores, magazines, Sunday newspaper ads, and on their credible websites
If you click on the image, you can examine a larger view of it.