I emailed colgate to let them know that i had 2 of their $1 off any base paste coupons and when they were scanned they only came up as .50
they sent me 1 free colgate product coupon up to $3.99 and 10 other coupons for colgate products for various amounts...this worked out for me because i was only using the coupons on trial size toothpaste which came up as .52
they told me if this ever happens again that i should contact the manager of the store which i used the coupons at...i would much rather email colgate because i doubt that the store would've done anything!!!

Woohoo Woohoo Woohoo
way to go!