"I recently had a frustrating experience at this restaurant. I was able to make several purchases under $5 with a card in the past, including a $3 and a $4 transaction. However, when I attempted a $4 purchase this time, I was told that the machine wouldn't accept card payments for amounts under $4. The employee I encountered on October 15 at 6:28 PM was very rude. I suggest that management review the staff working at that time. If I could give zero stars, I would."