After paying the hospital with Alipay, the balance has not changed, showing a refund. Does the other party know?

After paying the hospital with Alipay, the balance has not changed, showing a refund. The other party knows that because Alipay has a refund process, the balance has not changed after paying the hospital with Alipay, and you will also receive a refund message, so the balance has not changed after paying the hospital with Alipay, showing a refund, and the other party knows.