Rude Cashier

I am absolutely disgusted by the service I received at 7/11. Today I politely asked one of the cashiers if their card machine was working to which the cashier very rudely rep**** no and immediately turned away from me not even waiting for me to give my order (cause even though I wanted to use my card I still had cash on me) I then just walked away before making a scene. This is not the 1st time I've received this level of customer service and I refuse to spend my money there any longer. A good attitude towards your customers goes a long way. I mean its called \Friendly"7/11. Oh the irony"""