since the IRS may not be taking phone calls at the present time file form 8822 and make sure you update your address with the USPS.
here's the IRS phone number
800-829-1040
First choose your language.
Then 2
Then 1
Then 3
Then 2
When asked for SSN do nothing it will ask twice
Then 2
Then 4
You should then be transferred to an agent
