Your names should appear ... unless the NVC papers weren't done correctly.
It is now time to meet with an attorney to straighten things out.
PROFESSOR OF IMMIGRATION LAW for over 10 years -- This blog posting is offered for informational purposes only. It does not constitute an attorney-client relationship. Also, keep in mind that this is an INTERNET BLOG. You should not rely on anything you read here to make decisions which impact on your life. Meet with an attorney, via Skype, or in person, to obtain competent personal and professional guidance.
I agree with Mr. Capriotti. You may have to make immigration a priority. Otherwise, you will miss out on this opportunity. However, it is unclear whether there was an oversight on your non-immigrant visa application that can be viewed as misrepresentation. That is one more reason why you and your mom should see a competent and experienced immigration attorney. Good luck.
This is general information, not legal advice, and does not create an attorney client relationship.