Expired food

I've been a regular customer of Tommy's Sushi at Paradise Junction, Sarnia. Will never be going back there. Yesterday afternoon we ordered a few items off the menu, one of them being the Kong Pao chilli chicken with fried rice. I fetched the order just after 4pm. Got home, had a bite or two and then went to tutor a student. Got back home at 6pm, sat down to eat only to find that my whole container of Kong Pao had become slimy and sticky. The whole thing had gone off. I decided to just call the restaurant the next morning to let them know what happened. Even kept the food to take it them if they needed proof. The manager outright refused to come to the phone. We were told that the food is to be eaten within 3 hours! They've never said this before and now suddenly we're supposed to just know that? They refused to give a refund and cut the call. I'm absolutely disgusted by the service. I would not recommend this restaurant to anyone.