Just to finish the story... I went back today. The strawberry bw and honeysuckle bars were not ringing up as part of the sale. I was able to exchange those for pomegranate which is ringing up 2/$5 and get the difference back. Then I spent the $4 UPRs I earned yesterday and bought two more bws for $1 (this was my plan from the beginning) so I would have earned the $10 upr for spending $20. Worked out fairly for everyone!
Just to be clear - I did not and should not have earned any ups today.
Thanks again everyone!