Giant Food Stores complaint: Respect

I was in line at giants store in Bensalem. There was a lady with a large order on the counter. The person in front of her wanted to pay with his snap card, but was told the machine was out of order. Luckily he had some money on him so he could pay. The lady behind him said she only had a snap card to pay. So the lady of course was embarrassed, being she just went through the time gathering her order then putting it on the conver belt and told her snap will not work she proceeded to leave. The cashier started yelling and snapping her finger for her to get back here. The manager came to the register and made a comment people should make sure they bring money with them. This lady probably wouldn’t be using snap if she didn’t need it. With everything going on they need to be more passionate. It could be them next in that position. If the store is having that problem put a sign up saying the snap is not working at that time.