They charged me 20 cents for a glass of water, which would have normally been fine, but they did it only AFTER giving me the total for the order. It is NOT okay to try to charge me a different total at the curb than I was quoted at. He explained that he can't give me a free glass of water unless its a small (which is what I assumed I was getting since we didn't discuss any sort of upgrade).
On top of that, I had a coupon and he quoted me what should've been the correct amount for the coupon but on the receipt it was 10 cents more. So much for bringing in a coupon.
So, Sonic, here's your horrible review for a dispute over 30 cents. I hope it was worth it for you.