They only sent a certificate of marriage. Had two interviews and NOW they got a NOID. Folks, please make it easier on yourselves and front-load ALL YOUR EVIDENCE OF BONA FIDE MARRIAGE with your AOS petition. It is not a technicality or a preference or optional to bring it to the interview. The evidence that you present should date from the day you met. Otherwise, USCIS may think that you met on Monday, married on Tuesday and filed for AOS on Wednesday.
Please review the contents of this thread to learn creative ways to present your evidence. Even if you don't have much in the bank, or even if you do not have a mortgage or lease, there are PLENTY of ways to show evidence of bona fide marriage. https://www.immihelp.com/forum/showt...880#post588880