We appreciate you returning to the thread and providing more details about your query, @Bpkeeper. We'll share further information to help you determine where those payment deposits came from.
Before digging deeper into your query, please be aware that if you use QuickBooks Payments and your customers settle their dues online, it'll automatically link the payment to the invoice and mark it as paid inside the program. Since you're unsure where the deposits came from, we recommend downloading your bank statements from your financial firm. This way, you can use it to determine the origin of the payment deposits inside your account.
Another way to review deposits is to access the Merchant Service Center and run a report to find and review all the deposits. For more details, please see this page: Find transactions, deposits, or fees in the Merchant Service Center.
Also, please know that the Connect or Activate button in the Payments section inside the Account and Settings page will only show if you haven't linked your account.
Additionally, here's an article to learn more about the when QuickBooks process or deposits your funds: Common questions about QuickBooks Payments deposits in QuickBooks Online.
You can comment below if you have any additional QuickBooks-related questions. Our team will be around to provide a helping hand. Keep safe.
