Circle K

I was getting coffee at a Circle K location on January 12 at approximately 8:30 AM (MST). There is a promotion for a 24oz coffee and a Kind Bar for $2. The cashier charge me the full price for both items which turned out to be $4.95 I informed her about the $2 promotion and she reiterated to me the separate price for each item rudely and charged me accordingly. I paid for it because I did not want to be rude in return.