Hôm nay vào thấy vậy ko biết có bắt buộc điền ko nhỉ, ai ý kiến vs :binhsua53:W9 Form Required to Receive Payments: We require US publishers to send us their W9 forms and internationally-based publishers the W8 forms. You could download the W9 form here and the W8 form here.After You fill out and sign the form, please upload it as a scanned image or pdf file using the "upload" button on the account page.