Pizza Fan has made its first public statement about the case under review by the authorities. The Greek delivery chain suggested that confusion over its turnover figures may have crept in through its promotions and the free products it hands out. In the company's telling, discounts and giveaways make the numbers harder to calculate in the standard way rather than pointing to anything improper. Investigators have been looking at how the firm records revenue on items sold at steep discounts or given away at no charge. The question matters because turnover figures feed directly into tax assessments. This is the chain's first comment since the inquiry became public knowledge. Pizza Fan runs a large delivery business in Greece, so the outcome of the review will be watched closely in the sector.