I've mistakenly dissconnected my bank account, is there a way to get all my info back?

Hi @allisonhdz815,

In QuickBooks Online (QBO), any given online bank transaction that you've added or matched will be retained in your books. 

The transactions that are in the For review tab will be deleted when you disconnect the bank account. To get them back, you can reconnect the same bank account. 

Here's how:

1. Go to the Transactions tab.
2. From the Banking tab, click the Link account button. 
3. Search for your bank, then press Continue.
4. Enter your online bank login credentials.
5. Follow the on-screen instructions to proceed.
6. Hit Connect.

If you no longer want to sync the bank feeds, you have the option to upload the missing transactions by hand. Check out this article for more details: Manually upload transactions into QuickBooks Online. 

In case you encounter any issues while importing your online bank transactions, keep this article for future reference: Fix bank upload errors in QuickBooks Online. 

Feel free to post a reply and tag me in the comments below if you have other questions about online banking in QBO. I'll answer them for you.