Worst Service ever

We always go to OB Mall @ Carnival and we have never had any issues. But today on the 8th of December 2019 we received the worst service ever. Our waiter looked like a Trainee she did not know what we were ordering she had to look at the menu and write everything from the menu. When our food came my mussels was swimming in the garlic sauce that looked like water. I send it back and waited quite a while. Then my Husbands Sushi came without the sauce and sticks and we had to ask another waiter then he just walks off. So after 5 min my Husband received his utensils to eat. I got my mussels back and my gosh it looked like they melted a whole tub of butter in it, it was butter all over and still watery when I send it in the 1st time. We called the Manager but it looked like she was sitting sleeping in the office for when we spoke to her about the delay and the food she was like Ok, she looked at the mussels and sorted it out for me and received it after 10min. We wanted to order main meal and the waiter asked us if we want to order and I said Yes, the next moment she takes our menus away and walks off. By that time I was far behond ****ed off. We got to order eventually. My salad was gr8 but the Platter for one that my Husband got was horrible the chips and calamary was so oily and tasted old. I think that the owner of OB must up his staff and managers for he has lost us as a Customer and if it carries on like this he will not have a franchise left for just that bad service and food has put me off it totally.