I went to Lidl today with my little one. Got some bits and then went to the self service bit. My card declined and then I realised that I had frozen my card on the app earlier in the day. Typically, my phone had died so I couldn't get onto my app. A shop keeper shouted to another asking them to go over as my card declined. I saw one colleague look at another and then laugh and smirk whilst looking over at me. I feel really daft, I know it's my fault but I had had a stressful day and completely forgot my card was frozen. Everyone was looking and I feel so embarrassed that the shop assistants were laughing. Aibu to feel like reporting them for that behavior and also to not shop there anymore.