The collection methods and channels vary with different regions and policies.

Here are some common ways to collect coupons:

1. government-designated channels: usually through government-designated channels, institutions or websites, such as designated postal outlets, government websites, apps, etc.;

2. Distribution by merchants: Some consumer voucher policies require merchants to participate. For example, Shenzhen's "digital coupons" are issued by merchants, and consumers can get coupons by scanning the QR code of merchants' stores;

3. Online platform: Some coupons can be collected on major e-commerce platforms. For example, during the Super Category Day in JD.COM, there were official coupons issued by JD.COM.