In your dropbox document packet, you may include a letter claiming you are exempt from travel ban and the reason. You can include the copy of birth certificate of your child.
I suggest you include a copy of your kids birth certificate and passport pages 1 and 2.
We are just going through this horrible experience where our kid is a US citizen and I qualify for NIE for which I did submit my employer letter that says that I have US citizen and NIE.
Today I got my passport back with 221g citing PP10199. The officer simply didn’t read my employer letter and just refused .I have both NIE and US citizen kid. Anybody else in the same boat?