Hi Feilong, first off welcome to our Community! Sorry to hear that you haven't received your sim card yet. I see that my colleague asked you to wait until Friday, it's possible that your sim card gets delivered on Friday. If not, please contact us again and we will get to work right away to get a new sim card to you as soon as possible. Will you also let me know if you receive it today or tomorrow? I'd love to hear from you!