Not my Best Meal

I recently went to eManzimtoti for a break and popped into the local John Dory's and noticed they had a special 3 course meal for about R179 if memory serves me well. Ordered the small Prawn ***** starter, The Grilled Hake mail and Ice & Hot Chocolate Sauce for pud along with a large Coke. Felt sorry for the waitress as the Coke was flat, which she replaced, then had the Starter which was great and then the Grilled Fish arrived fried. I really cannot understand how restaurants get a 1 person order wrong. Is it the kitchen or the waitress? Then when you don't give a tip, one get looked at that I did something wrong. I was not impressed the a restaurant can get a simple order wrong. During Covid restaurants where crying but it seems we have gone back to "sorry" and shrugging of shoulders.