this could be a scam but then you would be able to get through on the phone number provided. 8008291040 is a real IRS phone number but getting through is an ongoing issue. 4/29/2023(in case of a typo would be a Saturday highly unlikely). It's also unlikely that the IRS would tell you they owe you a refund of a specific $ amount but need documentation. in most cases, they wouldn't know the amount if a form or schedule was missing.
can you tell us the letter number and generally what the IRS wants
or did the letter merely say we owe you $455 and nothing further was requested - this is possible but it could easily be weeks before you get it since direct deposit is unlikely.
