2. Click "WeChat Collection Assistant".
3. Find the message "QR code collection supports credit cards" and click "Open now".
4. Click the slider icon to the right of "Open Credit Card Collection".
5. The drop-down box at the bottom pops up, and click "Certified as a merchant".
6. Click Go to Authentication.
7. Upload your avatar, fill in the relevant information, and click "Certified as a merchant" below.
8. Click "Confirm Production" in the confirmation window.