Alipay transferred money to me twice, and my SMS reminder showed it once, but the total payment was correct. What happened?

The number is postal bank customer service, not a liar. Well, your mobile phone card was originally used by someone else, and this number was reserved at the Postal Savings Bank. I didn't go to the bank to change my phone number after stopping using it. Now that you have bought this calling card, the information is sent to your mobile phone. You don't have to worry about it.