Where do I find my coding?

Are you looking for the embed code that you can add to your website? If yes, then please refer to this guide: Adding-a-Form-to-a-Web-Page

If you are planning to download the form source code, then here's a helpful guide: How-to-get-the-Full-Source-Code-of-your-Form 

If this is not what you need then please provide more details about your issue. Thank you.