Scheduled Maintenance

OSA will be performing scheduled maintenance on Monday (21 October) from 17:00 to 19:00 US EDT. We apologize for any inconvenience this may cause. Thank you for your patience as we improve our services.

If you need assistance, OSA's Customer Service can be reached at +1 202.416.1907 (Worldwide) +1 800.766.4672 (US/Canada) or by emailing us.

Customer Service is available from 08:30 to 18:00 US EDT, Monday through Friday.

Letter of Invitation Request Form

Please be sure that your e-mail can accept large attachments as the Visa invitation letter will be sent as a pdfPDF. Please allow 7-10 business days for your Visa invitation letter to be processed. If you do not receive your Visa invitation letter within 7-10 business days, please check your e-mail spam folder to confirm that the e-mail and attachment were not flagged as spam and then contact us for assistance.

Please avoid using any accent marks when filling out your application as it will delay processing.

*
*
 
*
 
*
*
*
 
*
 
*
*
 
*
*
 
*
 
 
*
*
 
*
*