Your withhold request will definetely be processed within 15 days on average after the receipt.  You should expect a bit of delay, especially if you are mailing from overseas. Once processed, you will see the withhold reflected on your online AP score report online. If you had requested a score report to be sent to a college or university on the same form, please allow for the estimated delivery time depending on the delivery option selected. College Board can’t confirm if and when your score report is received by your designated institution. Contact your college or university directly to confirm they received your scores.