If you can't view the customer account notes, it could be that the permission is disabled in your office settings.
Please note that you can only update this if you are an admin or owner.
How to check it under your employee settings?
Go to Employees> click the employee name > permission > tick the box that says "Allow user to view and edit Customer account notes".
Lastly, click on save changes.
If you have more questions feel free to reach out to your Pocomos friends on the bubble chat.