If the PDF you downloaded did not include a Form 4868, then more than likely you did not use the same user ID to complete your tax return as you used to e-file the extension request.
Use this account recovery website to get a list of user ID's for an email address. Run the tool against all email addresses you may have used - <a href="
https://myturbotax.intuit.com/account-recovery" rel="nofollow" target="_blank">
https://myturbotax.intuit.com/account-recovery</a>
