My mother's card is not bound to WeChat. Why is Tenpay paying?

After receiving the text message, the bank card has a reminder of Tenpay/WeChat payment deduction. You need to check the deduction details.

Please pay attention to the official account of WeChat Pay WeChat-> Click on my bill in the lower left corner-> Click on the bank expenditure query, verify the face according to the page prompts, accurately enter the complete bank card number and amount (accurate to two decimal places), and select the transaction date to find out the specific expenditure account and the whereabouts of funds.