After you file

@Stinkerbellkity 

 

Our AGI was a little over $28,000, so definitely not applicable in this case.

I appreciate the reply, though; again, the amount pending is exactly half of what was anticipated, so it certainly appears that one of ours was taken for some sort of unknown offset. We've little recourse but to wait for the letter from the IRS (or try to reach a call center, although whether they'll have information on stimulus payments seems dubious).