How did someone send me a message through the QR code of the receipt?

Query billing information through QR code. You can find the receipt through the QR code of the receipt, find the contact person of the receipt through the receipt, and send information.

Specific steps: 1. Open the mobile phone WeChat and click "I" at the bottom right.

2. On the Personal Center page, select "Pay".

3. In the "wallet" in the upper right corner of the payment center.

4. After entering the wallet, click "Bill" in the upper right corner.

5. Enter the bill page, find the bill of the payee who needs to be contacted, and click the bill.

6. In the bill details, contact the payee below.

7. In the contact interface, enter what you want to say and your phone number, and click Send Message.