Post Office online stamps - wrong picture?

I’ve been very bold today and finally got round to trying the French PO online stamp option. All went really well until I came to print off my stamp.
I’d chosen a lovely autumn theme and what was offered for printing was “Save the Day”. It didn’t seem to let me go back and change the design. So that’s what I’ve used.
Might seem a small thing - only a stamp after all - but of all the choices it’s the least appropriate since I’m sending a birthday card, not an invitation.
Anyone else had this problem? Any suggestions please as to where I went wrong?