Sorry to hear that, Jinglepot. Our local evening paper runs a feature on Wednesday evenings on available store discounts. In Lidl's case, these discounts are usually available next day. Occasionally, I find an item isn't discounted, despite the report. Sometimes just the shelf price ticket hasn't been changed, sometimes their checkout computer hasn't been updated, and sometimes staff will say that the discount doesn't come into effect until the following Monday. Again, an offer may only last for a week, or, it may last until all the stock is sold. Hard to tell how long a discount will last, though the staff in our local Lidl are pretty helpful with advice. Better luck in future!