Ok. There was a minor error on the 8812 (transposition on inputting the advance amount received) of about $ 36. Client owed. The amount billed in the IRS notice was the Original amount of payment due (only due today) plus the error mount plus $ .49 interest. (Of course there shouldn't be any interest as nothing is late yet.)

Only took a couple of hour's to figure out what they were doing.  At least I had nothing else to do today. HA HA.