Costa Coffee review: Staff attitude

I attended Costa Coffee today,at Low Fell Gateshead,with my wife,and she went to the counter,and ordered two coffees,and two sandwiches.She retrurned to the table,and said they were bringing the food over.I heard someone shouting "two coffees and two sandwiches"and I said I think that's our order.My wife went and collected these,and about 1/2 hour later.two young lady assistants marched up to our table,and announced,in full view of everyone,that my wife was "rude"to them,and we had to finish our meal,and not come back.My wife is not well,and has mental health problems,and they said she had "demanded"they bring the food over.I was a manager for 30 years,and am NOT prepared to be lectured,in public,by two young girls,who were far to full of their own importance.I f they had worked for me,they wouldn't last 5 minutes.I went to the counter,and told them that i didn't appreciate their attitude,and I was annoyed,and did tell the male server to mind his own business.I TOLD THEM THAT HOW DARE THEY TALK TO ME LIKE THAT,AND THE OTHER ONE THREATENED TO CALL THE POLICE ! You may accept cheek from opinionated children,but I DON'T.