For further assistance with troubleshooting this issue, I recommend reaching out to the QuickBooks Online support team outside of the Community. They'll be able to verify your account in a secure environment. This will make them be able to view your account setup with you, provide some more troubleshooting steps as well as notify our engineers if necessary. You can reach out to them using one of these ways:
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.
