Komoon Thai Sushi & Ceviche

On 12/13/I went to this Restaurant to have a lunch with my wife we order our food and we have have some a question about the food they describe of the food from server was not good and we waited to longer to get our food the test of the food was not good I wait too long to get re-fell for My drink, when I check out I handle her my credit and coupons discount from the restaurant the semi return for me the card with a full charge and see the cashier tell them she can't except this coupon because saying buy one Dinner in tray with a drink and get a second one for free and she say we was on lunch time, I take my card back and left without leaving any tips because I was not happy with the food add not happy with the service the cashier her name Mail follow me to the street and ask me why I did not leave a tip and I explained to her I was not happy with the service she called me stupid and she tell me not coming back to this restaurant again I ask for a manager she told me she's the