My dad went into a furniture store once. Found a really nice armchair listed at $250. The sales associate was like “oh crap the ottomans are $250, the armchair is supposed to be $750, but we’re obligated to respect the listed price now.” My dad walked out of that store with 2 brand new armchairs ($250 a piece). The store fixed the price immediately afterwards.
To the best of my knowledge, the furniture store did not do any of the following:
1) Hunt down my dad later and demand he return the armchairs and pay the correct price.
2) Contact all previous customers who paid full price for the item and offer them any sort of compensation for that fact.
3) Contact any other potential customers that missed out on the fluke and offer them compensation.
That furniture store really dropped the ball. No rollbacks, no reconciliation plan. They simply didn’t understand the customer is always wrong. It was my dad’s fault for taking advantage of their mistake. He shouldn’t have come out ahead in the end.