Wowallet's Tmall shopping voucher usage message is counted from the day it is received and lasts for 30 days. Relevant public information shows that consumers take part in activities in Wowallet to receive Tmall shopping vouchers, which will be used from the date of collection and will expire after 30 days. Wo Wallet is the mobile APP client of Unicom Payment Co., Ltd., which integrates life service and Internet financial information service.