How do I find the License Code for a turbo tax purchase when I did not get a receipt or email with that information?

Is this a purchase made from a US website or from a Canadian website?

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Canadian website

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I got my 2004 Income Tax down by Turbo Tax. When they used my 2003 tax return to fill in my profile, they didn't change my Marital Status information that was supposed to be picked up from my 2003 Income Tax, which was Common Law. Can I get a working c copy of my 2004 Income Tax so I can change my Marital Status to what it should have been. Then I can Refile it.

@Graphic Designer We do not have access to your return for security and privacy reasons. We always suggest to keep a copy of your return for your own records. Generally, you can only request a change to a tax return from any of the last 10 calendar years. To update or change your Marital status please contact CRA directly.