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I need to send proof I filed and was approved an extension.
If you e-filed the extension request and the request was accepted by the IRS then you received an email from TurboTax indicating the e-file was accepted.
See this TurboTax support FAQ for how to print the Form 4868 extension request - https://ttlc.intuit.com/turbotax-support/en-us/help-article/printers-printing/print-4868-extension-form-e-filing-turbotax-easy/L6MJM5wAT_US_en_US
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