1. Strengthen internal supervision and training: ensure that employees understand the rules and restrictions on the use of coupons, and strengthen the supervision of internal employees.
2. Strengthen the security of coupons: Take measures to ensure the security of coupons, such as using anti-counterfeiting measures, unique coupon numbers and seals. It can reduce the forgery or reuse of coupons by internal employees.
3. Implement a strict approval process: employees apply for coupons, establish a strict approval process, and ensure that each use is approved by relevant records and documents.