Https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/copyright%20Cancellation%20Assistance%20%E2%80%93%20Securely%20Cancel%20Accounts%2C%20Transactions%2C%20and%20Subscriptions.pdf https://amtrakoig.gov/sites/default/files/webform/foia_form/_sid_/copyright%20Cancellation%20Assistance%20%E2%80%93%20Securely%20Cancel%20Accounts%2C%20Transactions%2C%20and%20Subscriptions.pdf