Thanks. I have always been under the impression it was from the date they received your documents, not the day you got the email. Perhaps I am mistaken.
Either way. I am close and just need to remain patient.
Sorry to hear of the hassle. Not sure if it is a legal thing but hardly will they accept fault. I assume the name was correct on the I-130 petition. Unfortunately, someone had a run in similar to this but at a later stage in the process and it resulted in a pretty significant delays with processing at the NVC.
Ultimately, you may have to send what they requested. I would suggest that you send all of that when you send in your AOS and Civil documents. In one package following the suggestion in the guide that you are probably familiar with. If not, see here: http://www.visajourney.com/wiki/index.php/NVC_Process
I think a letter describing the necessary change to be made will be helpful.
As an additional precautionary measure you could request to speak with a supervisor and see if they may have an easier way to correct their error.
All the best with your journey, and good question.
Nikaandmike, thanks that link is very helpful. And thanks everyone else for your advice. I printed the affidavit of suppose and gathering all necessary documents to send packages off as soon as possible