I know how frustrating it is to face a lingering issue for months, and I truly appreciate your patience with this. The best move now is to connect with our Intuit Experts directly so we can finally get it sorted out for you. To reach them, just go to Help (?) > Search > Contact Us.
Once you're there, let them know how long you've been struggling with this glitch and choose whether you'd prefer to Chat or get a Callback. A live agent will review your account with you in real time to pinpoint the source of the issue and ensure it is resolved.
I'm also sharing this article in case it helps shed some light on why these persistent banking errors happen: Troubleshoot and fix banking errors.
Feel free to reply to this post if you need a hand with anything else. I want to make sure you're completely taken care of.