Subway

I went to this location, it’s not my first time but it is my LAST.
I was charged $ 5.75 for just a 6-​inch sandwhich with regular toppings. When I asked the cashier why she rudely responds because that is the price. I explained myself and said «for just a 6-​inch?» she said yes. I told her I was sorry but did not want the sandwhich that it was the first time I have ever been charged so much for just a sandwhich. I got the subway club btw.
She asks the man behind her who I assume is the manager and he get’s very loud and points repeatedly to the menu «That’s the price, that’s the price! Why would you think otherwise?» I apologize say I made the mistake but I don’t want the sandwhich can I please have my card back. The cashier is holding it away from me. We continue like this back and forth him and she has joined in and is both are scolding me and I keep saying I don’t want the sandwhich, my mistake.
She finally gives me my card and as I’m walking out the man screams «NEXT TIME YOU LEARN TO PAY ATTENTION!»
It’s safe to say I’m done with Subway…