If you realised after you got home?
Bought some items today in our local supermarket. Was given my change with the receipt on top so didn't notice and just shoved it in my pocket.
When I got to another shop I noticed I had too much but thought I had given a higher note than I thought as I did have one in my purse.
When I've got home I checked the receipt properly which is no use as it stated I gave her the correct cash when I didn't but I've found the higher note.
So would you go back (no car but only a couple of miles) or not.
Less than a tenner if that makes a difference.