You must submit IRS form W-8BEN with your withdrawal request. Download and print form.Image of Apply button. Your application template fills in the basic information for step one, and you are able to proceed with the application process steps. Refund processing time: Please allow 60 days from the date we receive your completed application—both Parts 1 and 2—for our refund unit to process your payment. IMPORTANT NOTICE - This is a request to withdraw your application. If we approve it, the decision we made on your application will have no legal effect. Foreign Certificate of Withdrawal.