1. Contact the purchase channel. If Moutai coupons are purchased through regular purchasing channels, you can contact the customer service of this channel to consult relevant policies to see if you can return them or extend their service life.
2. Contact Maotai Company or its distributors. If you buy Maotai coupons through official channels or authorized dealers, you can directly contact Maotai Company or local dealers to consult relevant policies, whether you can exchange goods or extend the service life.
3. Participate in activities. Sometimes, Maotai Company will hold some promotional activities, such as trade-in, which is of equal value. You can follow official website or social media account of Maotai Company to keep abreast of related activities.