Pls add additional info to the Southpoint 2/1 Breakfast coupon T&Cs

My experience with my once a year coupon was this.   

Here's my 2/1 buffet coupon.  (cashier accepts it, and rings it up).   I say, okay, here is my card, I want to pay with points which today (Monday) is Senior Day, and points are worth double for meals.   (cashier replies, I can't do that, it won't accept both offers).   I said, okay then I just wasted my coupon.  She said no you didn't,  I said, yes, I paid the same amount of points after using my once yearly coupon as if I didn't use the coupon!  I don't think she grasped that.

In any case, the coupon should have a warning that it cannot be used on Monday's if you are eligible for the Seniors Day meals paid with points benefit, so that others don't run into this!

I made the same mistake last May and was not quick enough to ask for the coupon back. 

Well. lesson learned...you can almost never piggyback offers. I don't know why you would want to anyway...half off twice is better than half off of half off once.