So sorry to hear you having all this trouble and that the IRS online account system is so bad.
Thanks, I finally managed to get through around 10am UK time this morning. Downloaded the transcript which has their adjustments. For payments, here is what is in there:
As you can see, I had down $2800 as a refundable credit. I 100% submitted 8812 (have resent this in Jan), but it is showing $0 for ACTC both for what I inputted, and what the IRS corrected ("PER COMPUTER") which suggests something was wrong with the 8812 submitted form in scanning/processing. As such, you can see the adjusted refund due is $0 (TOTAL PAYMENTS PER COMPUTER).
The other thing to note, is for the SSN at the top of the transcript, it reads:
TAXPAYER IDENTIFICATION NUMBER: XXX-XX-####
SPOUSE TAXPAYER IDENTIFICATION NUMBER: XXX-XX-####*
Note the '*' at the end of the spous ID number (SSN). I wonder if this signifies that it doesn't match with their records for name. However, I do not believe this is the reason for lack of refund, due to (a) the fact that they have on the transcript $0 for 8812 from my submission (they haven't corrected this to $0 for the PER COMPUTER line) which suggests to me the Form 8812 was not processed correctly on receipt of the paper copy, and (b) prior years I have used the same name and SSN and received the refund.
I would have been tempted to resend the forms not as an amendment (1040X) but with the spouse surname changed to maiden name with a cover note explaining the discrepancy but I am thinking that is not a good idea and should wait longer to give time for me resending in form 8812 in Jan this year to process through the system. However, how will I know if/when they have received and processed my new 8812 with covering letter explaining?? I sent it tracked delivery so I know they received it...
The joys of the IRS! This year now as e-filing just to get it done, I have taken the suggestion of H&R Block expat and submitted my 2021 return with my wife's maiden name. Once it is processed, I will look to get her a new SSN card registered under her married name.