Not able to login, lost 2FA

Hi,
I’ve lost access to my 2FA authentication tokens and recovery codes but I would remember the username and password for my account. Its been almost 2 weeks that I submitted a support request (Ticket ID #1288092) and have not heard back at all from GitHub Customer Support in spite of following up multiple times via email.
Our organization relies on GitHub for our daily workflow and need an immediate solution to get unblocked.

Please find the details below:
Username: apurbochakrabarty1

Kindly help me to recover my Github account since my account (apurbochakrabarty1) is linked to my corporate email ID and will be used for company wide projects.