I received CP2057 notice asking me to amend my 2022 tax return. It says the amount tax withheld from W2 forms is different than reported in my return but it is the same.

Discuss with the IRS. 

The only option they provide is to file a 1040-X. Is there a number at IRS that we can actually ask questions like this? I am under the impression that getting someone on the phone these days is not possible. Do you have a number? Thanks.

if you do nothing the IRS will eventually proceed to assume it is correct. this would change your refund or even hold up your refund until you respond.  

if there's a number on the notice call it

otherwise

1. Call 1-800-829-1040 between the hours of 7:00 AM – 7:00 PM local time.
2. Press “1” for English or “2” for Spanish.
3. Press “2” for “answers about your personal income taxes.”
4. Press “1” for “questions about a form you have already submitted or a payment or to order a tax transcript.”
5. Press “3” for “all other questions about your tax history or payment.”
6. Press “2” for “all other questions about your tax history or payment.”
7. Do not input your Social Security Number when the recording tells you to.
8. Press “2” for “personal- or individual-tax related question.”
9. Press “3” for “all other inquiries.”
10. Wait to be connected to someone at the IRS.