Three of the credit card payments my customers have made to me are showing NOT DEPOSITED but are in the bank account. Other CC show DEPOSITED. How do I fix this?

Let's work together and get to the bottom of this, Tim.

I recommend signing out and signing back in to your QuickBooks Online (QBO) account to refresh it and for the updates to take effect. 

If this is not the case, I recommend contacting our Merchant support team. One of our live agents can look into your account and investigate why those credit card payments are showing as Not deposited in the Invoices tab.

In the meantime, let's manually deposit those payments to your appropriate account. I'll show you how.

1. Go to the Sales menu.
2. Select the Invoices tab.
3. Locate the invoice you want to change status and select View/Edit from the drop-down menu under the ACTIONS column. 
4. Click the 1 payment made link and click the date link to open the payment. 
5. From the Receive Payment page, click the Deposit to drop-down menu and select the appropriate account to deposit the payment. 
6. Click Save and new or Save and close.

Once you're all set, you might want to check out this link for reference on how to seamlessly match your accounts in QBO: Reconcile an account in QuickBooks Online.

Please know that you're always welcome to tag me in your reply if you need more help with your payments and invoices. I'll be more than happy to assist you anytime. Have a good one and more power to your business!