I am not sure exactly what they did on their end, but it was a super easy fix. I spoke with Brittany with the "Intuit's Advanced Escalation Team". She said your case has to be sent to her department. So maybe ask that it be escalated to that particular team? The number she called me from was 1-800-446-8848. I was on the phone with her for 8 minutes and within that time, I was able to log out, log back in and send invoices successfully. I hope you can get yours escalated!