Help with filing taxes by Oct 15 due to not receiving corrected W2c

For the tax year 2022, my company did not withhold FICA taxes from my payroll due to my visa status. However, I later realized that I am required to pay FICA taxes regardless of my visa status, as I am considered a resident for tax purposes. Additionally, my W2 form underreported my total income by almost $20,000, further complicating the situation.

As a result of these issues, I missed the tax filing deadline and had to file a tax extension in April. I calculated my taxes owed and paid a generous amount to avoid any penalties. Despite repeatedly raising this issue with my company's payroll and ADP for almost 5 months, I still haven't received my corrected W2 (W2c) for the tax year 2022.

I am concerned that if I file my taxes using the incorrect W2, it will indicate that the IRS owes me a refund for the taxes I paid, which is not accurate. I want to ensure my tax filing is accurate and reflects the corrected information. Considering the circumstances, what specific actions should I take at this point to file my taxes by the October 15 deadline? I am worried about the potential refund discrepancy, and your guidance on resolving this issue promptly would be immensely helpful. Thank you for your assistance."