Has anyone used any of the 20% off Denny's coupons? Have you ever had a problem with the restaurant accepting them?
I reviewed several Denny's coupons for 20% off this morning and discovered that most of the ones posted with copyright 2011 have the exact same bar code 88880182 with different names and expiration dates on them. The altered dates are in a font that doesn't match the rest of the text. So it looks like they can be manipulated in some way and still appear to be from the Denny's site. This has been going on for quite some time, and they are posted on many other deal sites.
A few examples of possible altered coupons are:
It's curious that these expired coupons are still visible while a legitimate one that requires entree purchase http://www.buxr.com/d/124051
says "Sorry this offer has expired" at the link http://assets.fbmta.com/clt/dn.....coupon.asp
In addition, the newer coupons like the ones I received in email from Denny's Rewards now say "20% Off with entree purchase" and copyright 2013, with all text including the expiration date in the same font. Note the bar code has a higher number than the old recirculating coupon.