Do you ever print a list of the coupons that you have loaded on your Kroger card before leaving to go shopping? (When you click on "View My Coupons,", there is a place you can click on to print the list.) If you purchase something and the EQ doesn't come off, take your printed list and receipt to customer service in your store. Show them what EQ didn't come off and hopefully they can refund you the amount you are owed.
The way I see it, if you want the rainbow, you gotta put up with the rain.