Shops sells rotten fish

I just bought fish and chip today 2021/10/03 3pm, at the fish and chips store, wonderpark mall, they sold us rotten fish, it's even smells, i bought 2 combo fish and chips and 1 quorter leg, am very dissapointed, why do you sell old stuff and chips were half done. Can you please improve on your service and serve customers fresh meal. The shop is by side of OBC chicken, next to escalators..... Your service is very poor, you don't care about the health of customers, if something is not fresh don't sell it