Bad customer service

I'm not happy with the service they gave me at engine garage Naledi, last night 19 November 22 at 00:42 me and my wife bought a fried fish, we were not happy with the pricing after paying so before living the complex we decide to change it for something cheaper, the cashier told us that we change it due to the manager not on duty, we ask if the is a team leader on site, the answer we got from Mxolisi who was a cashier on that time told us that there is nothing he could do, we should leave the fish and come back in the morning, the manager will be on duty, so we did leave the fish and came back in the morning, yes we did come back in the morning and we find the manager on duty Enoch who also told us that he can't do anything, we should take that fish which we left at night because they can't refund us, so I'm surprised that their casher told us to leave the fish midnight only to find out there going to give us the same fish In the morning, me and my wife we didn't take it and yet we left without our refund of R47, I feel like is was ******... How can I get help with this issue?? My name is Sibusiso Buthelezi and my tell is ***