I totally recognize the urgency of resolving this, Bhanem. Let me direct you to the best available support to clarify things thoroughly.

I recommend contacting our Technical Support Team for immediate updates on your previous case. They can check your account securely, which I’m unable to do here in the Community to protect your security because it's a public forum. I understand you've already reached out to them. However, it would be best to contact them again so they can review your open cases and provide the necessary solutions.

Regarding the notices or warnings you see on your bank website, I highly suggest reaching out to the American Express support team. This way, they can confirm the notification you've seen and answer all of your banking concerns about this issue of syncing bank transactions.

Moreover, entering a transaction or downloading it from an online bank must be categorized in QuickBooks Self-Employed (QBSE). By doing so, the system can place them on the appropriate line of your Schedule C form. Check out this article for more details: Categorize transactions in QuickBooks Self-Employed.

We're always here in the Community to help if you have other questions about managing bank transactions in QBSE. Just leave a comment below. Keep safe!