according to the relevant laws, regulations and policies, the purchase and sale of merchant vouchers, coupons and other third-party vouchers are restricted in China. According to the provisions of Article 75 of the Advertising Law of the People's Republic of China and Article 21 of the Contract Law of the People's Republic of China, vouchers and coupons are a way for merchants to promote consumers, and consumers can enjoy corresponding preferential discounts after purchasing vouchers and coupons. However, individuals who buy vouchers and coupons and then resell them to others, or merchants who sell vouchers and coupons to third parties, all violate this law and regulation.

Therefore, from a legal point of view, it is illegal to buy Pizza Hut vouchers on Taobao. The purchased vouchers may be obtained by other methods rather than the positive channels, and the merchants cannot guarantee the authenticity and availability of the vouchers. Therefore, in order to avoid unnecessary troubles and losses, it is suggested that you still purchase vouchers directly from official or legally authorized channels of Pizza Hut through formal channels.