Once you submit your OSAP application, you must submit a signed letter to make changes to your application. Log in to your OSAP application at  www.ontario.ca/osap to see the summary of application information OSAP currently has on file. Write a letter indicating what changes or corrections you need to make including your name, student number, and your college or faculty, then and upload the document in the “Changes to Application” section (in the “Additional Uploads” page) in your OSAP account.