Billa received the largest fines, totaling CZK 940,000, after inspectors discovered seven violations during price checks. In one instance, a Billa store in Prague advertised a 40 percent discount on Heinz ketchup for CZK 44.90, claiming it was previously priced at CZK 74.90. However, the lowest price in the last 30 days had been CZK 39.90. As a result, the advertised discount was, in fact, a price increase.