K1 visa proof of meeting in person evidence, and have dual citizenship with Brazil, and no stamps on passport

[Alexgagon 0]

So I sent a huge packet with a lot of evidence of proof of meeting in person, but I only attached my American passport.. But I have dual citizenship with Brazil, which is where my fiancé is from.. So I flew to Brazil on my Brazilian passport, but they don't stamp my passport since I'm a citizen there... So how do I prove the dates in which I was in Brazil? Because I received the RFE blue letter needing additional proof from my passport and needing a stamp, in which I cannot provide... Is my flight information sufficient for this primary evidence? Also my parents have a condo in Rio, which is where we stayed, so I wonder if I can get an affidavit from them saying that we were there... Any help or advice would be great on this topic, cause I'm stressed out that I may not have enough evidence

[Transborderwife 4,666]

Boarding passes, receipts putting the two of you in the same place at the same time is good.

[Alexgagon 0]

But I think they wanted a passport stamp, which I can't provide, because I used my Brazilian passport to enter Brazil, and they don't stamp my passport if I'm a citizen there.. I don't exactly have receipts either. My mom is Brazilian, and my parents were with us in Brazil a couple weeks before I sent the petition... So I wonder if a letter from them can help also

[Transborderwife 4,666]

Boarding passes and things like that will help more than a letter...anyone can write a letter.

[jphilipps 0]

good luck!