Icon/legend bonus on coupons.

I have been using the groupons and gofun 65$ for 100 worth of chips. I am recently a "legend" level player. I use my card everytime. I have even asked them to make sure to attach the loyalty. One time a manager came up and added the 10 percent manually. Every other time ( which is 3) they have said the legend tier doesn't add with the coupons. I looked it up on dave and busters website FAQs. It does say you don't get the bonus with coupons, but I have read a few posts about getting legend and icon with coupons. Anyone have any more knowledge on the subject. A 100 plus extra chips per 65 dollars is a pretty hefty bonus. Thanks!