I also purchased a name from Yumei Ming, and their service is good. I didn't find it at the time, so I called them later and taught me how to operate it. I sorted it out, hope it can help you.
1. Click Search in WeChat, which is where the magnifying glass pattern appears.
2. You will enter a new page, click on the official account, then enter "Yumei Ming Naming Network" and click search
3. A "Yumei Ming Naming Network" will open "Net" public account information, click on the "Yumei Mingming Network" public account
4. Click "Follow the public account", and then you will enter the public account
5. Click on the lower left corner Keyboard, just send them your bill content
They also have customer service staff on them, you can talk to them directly.