Where can I book tickets online? Why did China Eastern Airlines send me a text message asking me to pay?

Don't mind calling 95530 to provide your name and ticket number. Basically, if you have the bank number, the payment will be successful. I suggest you call official website directly to buy tickets next time, without Alipay. You can tell him the credit card number. Where to go is just an intermediary, mixed fish and dragons. Sometimes you will be fooled, but official website, which network you should go to should be no problem. As for the four dollars, I guess where you earned them.