Amended Refund Amount Different from Requested

[flamingvan]

I amended my 2019 return.  After over a year I received an amount which was around $600 less than what I requested.  I got a CP21B notice which said "We made the changes you requested" but there is no explanation for the difference.  It says that if I do not agree that I should call, but I cannot get through.

Should I deposit the check?  How should I get an explanation for this?  Should I try writing to them by conventional mail?

Thanks,

Moses

[Critter-3 · Accepted solution]

Should I deposit the check?  Yes ...please do.

How should I get an explanation for this? Did you review your original and amended return carefully ?  Does that $600 show up somewhere ?  Did you check/review your tax transcripts against those returns yet ?   Doing so may answer your question.  https://www.irs.gov/payments/your-online-account

Should I try writing to them by conventional mail?  You can however expect a response to take months.

[flamingvan]

Thanks for the response.  I checked the transcript and it looks like a separate refund for the amount was just issued today.