A few suggestions: can you take a look at the request in the browser dev tools and see if it’s formatted correctly there, in the POST? If you want to drop a link to your Netlify URL where the form lives, we can give more instruction on how to do that!
The other thing is that you made need to create a FormData object and pass that to the URLSearchParams, as shown in our docs here:
The two main differences are the values and form-name.
The values are received and encoded properly. The exact same as the working form. But when testing submission, only the first form is received, the second form seems to successfully send but doesn’t appear in the dashboard.
Questions about custom code are welcome here on this forum but you will be relying on other community members for that troubleshooting. Someone else here may be willing to troubleshoot but our support team general speaking simply doesn’t have the bandwidth available to look at custom code.
About the real form URL, you can post that information publicly or you can private message (PM) that to one of our support staff. I’ve confirmed that PMs are enabled for your community login. Please keep in mind that only one person can see the PM and this will likely mean a slower reply than posting the information publicly. Please feel free to reply to however you prefer though.