Note missing

Hello. I recently deleted an email account I am no longer using from my phone (iPhone 12 Pro). When I was deleting it, I noticed the account indicated "notes", but did not think anything of it. A couple days later, when I went into my Notes, I noticed that none of my recent notes were there anymore and I have since realized that my Notes must have been synced to this email. Unfortunately the account was related to the previous company that I’ve been working and that company doesn’t exist anymore ( so there isn’t any mail and password) so I even can’t adding the email account back . Unfortunately, I was not syncing to iCloud or to iTunes. Does anyone know if it's possible to restore these Notes?

there is more than 50 notes all important stuff, I really need help

Thank you for any assistance!