Group 1 - The article discusses a promotional event by China Construction Bank (CCB) in collaboration with Alipay, offering discounts for customers who participate in the "Daily Reduction" activity [8][10]. - Customers can sign up for the promotion through Alipay, where they can receive random discounts ranging from 0.2 yuan to 11.1 yuan on purchases over 50 yuan [8][12]. - Each customer can participate in the promotion up to two times a day (once with a debit card and once with a credit card), for a maximum of seven days, with limited total and daily quotas available [8][12][14]. Group 2 - The promotional event runs from October 31, 2025, to November 11, 2025, targeting customers who have linked their CCB cards to Alipay [5][6]. - Customers must actively register for the "Daily Reduction" event within the Alipay app to be eligible for the discounts [8][10]. - The article emphasizes that the availability of discounts is limited, and once the quotas are exhausted, the promotion will end [12][14].