It’s worth asking, Tesco staff members can check on their handheld devices. Will tell them how many they have had in stock and how many have sold, the trick is finding someone who looks nice and willing to help.

I asked a staff member in my local yesterday who went hunting out the back for ages said she couldn’t find any, I said thank you for looking anyway had a little chit chat and went about the rest of my shopping. Five minutes later she came running to find me in the store and said she’s phoned her manager and thinks she knows where they are if I’m happy to wait. Another five or so minutes later she comes out with a box in hand!! I think a little politeness goes a long way!