Can I get my Safari data with the information I filled out on websites?

Hey, guys I have a problem with my home rental, I know that I did it wrong but I'm here as my last chance to fix that.

I would like to know if it is possible to get my safari data that contains the information that I fill up on the website, I sent a notice of moving but I didn't get a receipt of it.

So I would need the information that I sent on the form and what I sent it. Is that possible?

[Re-Titled by Moderator]