My brother and I had a similar experience in Nandos Cardiff last week. You usually order food via the QR code at your table. The website to order was not loading on mobile internet, and we could not connect to the Nandos Wi-Fi. So we proceed to the till to order.
“Could we order here, as we can't get on the website”
“Have you used the QR code at your table?”
“Yes, it won’t load.”
“Have you connected to our free Wi-Fi?”
“We tried, and it won't connect.”
“Have you tried your phone's internet connection?”
“Yes, the website won’t load.”
“Would you like to try the QR code with me, and I can check.”
“No, can we order food at this till, please?”
“I suppose, yes, what would you like to order?”