Locked out of our QuickBooks account after a former employee left. Recovery info is tied to her personal email/phone and support won’t restore access. Need admin help.

I’m extremely frustrated and hoping for help from the QuickBooks Community or Intuit. A former employee set up our QuickBooks account using her personal email and phone number for account recovery. She left without notice and has been unresponsive to multiple attempts to regain access. I’ve submitted the account recovery form multiple times and contacted Customer Support, but was told they cannot assist further. Despite providing business verification, I’ve received no resolution and remain locked out of our company account. This is a business-owned account and we urgently need administrative access restored. Any guidance or escalation from Intuit would be greatly appreciated. Thank you.