I am the master admin of QB account with main account (xxxxxxxxxx.xxxxxxxxxx@xxxxxx.xx), today I surprised that my account deactivated. I need to recover it.

Let's recover your account, useri-moghrabiah.

As long as you have an access to your email address and the phone number that you associate your QBO account with, we can follow the steps in this article to recover your account: Get help if you can't sign in to your account.

If you're still unable to recover your account, I'd recommend contacting our Customer Care Team. They can review your account and help you recover it. You can reach them using this link: QuickBooks Online Support.

We got your back if you have additional queries. Have a great day!