Connection to bank stopped working 5 weeks ago. Stuck in Level 1 Support hellhole.

I have been using QB SE for over 7 years.  This year I migrated to Solopreneur and for the first 6 months all was good. 
As of the beginning of November, the connection to my bank just stopped working. When I tried to update it, I keep receiving several different error messages. I have always use Brave browser (Chrome based), but in an attempt to troubleshoot, I have tried connecting on Chrome, Edge, Firefox.  When using any of these browsers in regular mode I receive an error 103, which is related to incorrect credentials. Credentials are correct as I am able to connect to my bank daily. 
When I try to connect the account via the QB app or Brave / Chrome in Private mode, I receive an Error 590, which relates to QB being unable to establish a connection.  This has been happening for 5 weeks straight.
I have been on chat support for hours and have gone through the standard level 1 troubleshooting steps, which all revolve around making sure I'm entering the correct credentials.

My bank account is successfully linked to several other online providers, including my retirement, 401K and brokerage accounts without any issue.  Also, as a way to troubleshoot the issue on my side I have since connected to a personal account at a different institution to QB Solopreneur and that worked perfectly the first time.

It is obvious that there is an enterprise level issue with Intuit connecting to my bank, probably related to URL name, ports, URL whitelisting or security certificate validity.   This is something that the network security teams needs to look at; but for 5 weeks Support has treated it like a credentials issue. 
I have been trying to request an escalation of this issue to a supervisor or advanced engineer for weeks.  After much cajoling the case was sent to the development team only for them to send me a request to use a screen capture tool to record myself manually entering the User ID and Password for my bank and submit the recording in order to continue to troubleshoot the issue.
I don't see how requesting that a client submit their banking password is not a violation of Intuit's data privacy and protection policy. 
Is anyone aware of an email or phone number where I can escalate this issue?