Federal Refund Held Need To Verify Identity

Hi. If someone can give me advice about my problem I will greatly appreciate it! I filed my 2019 taxes in February. A few days before the COVID 19 shutdown, the IRS sent me a letter saying that I need to verify my identity before they can disburse my refund. My state taxes were under review but processed about 3 weeks, ago. My question is, with the IRS being closed, I cannot reach anyone to prove my identity. Is there any way around this? I would really like to have my refund during this pandemic but I am unable to reach the IRS to prove my identity to get my refund. In addition, IRS technically shows that I have not filed a return because it's being held. Will this stop me from receiving stimulus payment? I cannot reach anyone to resolve this and I really need my refund right now due to being laid off. 

 

Thank You Very Much.