A consumption and tourism boom during the Labor Day holiday has triggered a growing number of complaints over commodities, catering and accommodation, the market watchdog said.

Market regulators in the city received 10,421 complaints via the nation’s consumer protection service hotline 12315 over the five-day holiday, with food (1,423), clothing, hats and shoes (1,207), household items (869) and catering and accommodations (655) topping the list, according to the Shanghai Administration for Market Regulation yesterday.

The market vitality and consumption potential has been fully unleashed with the Double Five Shopping Festival and various discount activities, accompanied by increasing consumption complaints, the administration said.

Food, clothing, hats and shoes, and household items accounted for about one-third of complaints during the holiday, with online shopping, unmatched promotions, delivery and after-sales services also drawing the ire of consumers.