Thank you for your reply.
I contacted the IRS on their behalf and after an hour reached a human who deals with amended returns. He said we were in the wrong place and forwarded my call to someone else, at which point the call dropped. Are there any search terms you'd suggest that might show a more direct way to reach the right person? Or where to go within the IRS phone system to reach the right person? I expect to have to wait on hold for a long time, but I'm afraid of another transfer ...
