Subway in East Hertfordshire

Asked for footlong with Tuna and manager prepared me a chicken footlong. When I noticed after leaving the shop went back into to say you made me wrong sandwich and the manager started to become rude and agitated when I said I asked for tuna and he denied I said tuna even though I was with my manger. Subway manager was very rude and didn’t ask if I wanted a different sandwich so he just gave me a full refund Maybe if he had a haircut so his hair don’t cover his ears he would probably hear what customers actually ask for!!!