The Co-operative Food Market

In all stores that I have entered, my first question is usually, «Do you take MasterCard?» I slowly stepped in the Co-​Operative Food Market and asked the lady at the counter that very same question and she replied, «MasterCard? Yep.» This shocked me, as this question is usually followed by a «No, sorry.» Flabbergasted, I stood in the aisle and stared at the lady. Then she stared back at me. And it was silent for a bit. Then I realized that my standing in the aisle for 2 minutes without saying anything forced me to make up for the awkward situation I created by buying something. So I smiled and stepped further inside.
I was able to buy 2 bottles of water for £1, and 12 hot crossed buns for £1.50. While weaving in and out of the aisles, one worker asked me if I was finding everything alright, and asked it in a tone that indicated he really did care if I was finding everything alright. I said, «Yup.»
I paid for my things and the lady at the counter and I didn’t say anything to each other. She rang everything up, I paid for it and she gave me a bag. As I put my goods in, she must have sensed that I felt bad for the previous awkwardness I caused because, as I left, she said, «Hey, have a good day.» I gave her a head nod, and went out the door.