Hi there sapphire-drew,

It's vital that all your transactions be correctly entered in your books so that your account balances can ba accurate. QuickBooks Online is a tool that can import transactions from the bank to save you time with data entry. I can point you in the right direction for assistance with bank connections.

In order to troubleshoot the bank connection and be notified once the issue has been resolved, I recommend reaching out to our support team outside of the Community. They'll be able to check the connection between your QuickBooks account and your bank in a secure environment. They'll be able to provide some assistance troubleshooting the issue as well as notify our engineers if necessary. If it's a known issue for that specific bank, they'll be able to attach you to the list of affected accounts so you can receive a notification when the connection can be established once more. You can use one of these ways to reach them:

Schedule a Callback or start a Chat: click (?)Help in the upper right > type and enter "Contact support" into the QB Assistant > click Contact Us > explain your situation > click Let's Talk > choose Get a callback or Start a Chat. 
Social Media: Facebook, Twitter, and Instagram.

If you have any other questions feel free to reach out here.