Non of the fish and chips shops round my way are open on Sunday because of what bigblue said. Whether they use frozen fish, and Sunday closing has now become habitual, I don’t know. I certainly see the fresh fish man delivering to the best one in the mornings.
Bloody hell, it won't be frozen, my family had fish and chip shops, they get regular deliveries throughout the week and the fish is stored appropriately, it is no different getting it on a Sunday as it is a Friday because you don't know when the deliveries are.
Yes, deliveries may have been Friday, but do you only eat fish at home the day it's delivered, trust me it's in date and fine. Some folks are talking like they'd only have a fish supper if it came straight from thr friggen sea stopping briefly to be cooked before it hit their plates.