yeah mine has that too! I've done it a few times using an expired one and it still works!This is most likely illegal or something, but if you have a photo editing software, you can change the date on the coupon. Michaels has old systems, and will read expired coupons and still give the discount. As long as you can pass it by the cashier, your good to go.
or at least mine has old systems anyway, the few remodeled ones might be packing new gear....do this at your own risk.
Not all of them, only similar coupons use the same bar code, that is why its possible to use expired ones. Once they end this red coupon, a new one will come out with a different code, but they will leave the expired one in their database.They all use the same bar code.