The fastest and most effective way to remedy the situation of an out-of-date address or telephone number is to provide the information as requested in the notification you have received (see: I received a notification that a review of my file indicated a U.S. address or telephone and additional information is required. What additional information do I need to provide?…

FATCA related FAQs involving U.S. address or telephone number. See here for other FATCA related FAQ topics…

You need to provide one document from Category A AND one document from Category B)(see below) AND  Category C a written explanation explaining the U.S. address or phone number:

Category A: Provide ANY ONE of the following documents issued by a non-U.S. country:…

The US Internal Revenue Service generally considers individuals who spend a significant number of days in the United States each year to be U.S. taxpayers. The table flags customers who exceed those IRS rules for U.S. income tax residency and requires a W-9. Alternatively, it may be possible for you to satisfy the “closer connection test” or utilize a U.S. tax treaty to avoid U.S. tax residency. Please…

In this case, you can probably satisfy the substantial presence test noted in the notification you've received. Please provide the number of days you spent or plan to spend in the U.S. in the current and prior two years (e.g., 2019, 2018 and 2017). Also refer to the documentation requirements outlined on our website…

Please check the expiration date of your visa. If your visa has expired, please provide other evidence of your status, such as an Optional Practical Training (OPT) card, a copy of Form I-20 endorsed by the DSO for your school or another Employment Authorization Document (EAD). Also confirm you submitted the necessary proof of identify and address documentation to resolve the FATCA issue involving a US address or phone number. …