US Immigration from Nigeria

I have been waiting for an update on my I-360 application over 2 years now but I have only received prima facia 3 times. I filed my i-360 application march 2019. Last month I contacted my congressperson and the response was pending security check. Please do anyone know what I should expecting next and on the average how long will it take for an update in cases like my? Please responses will really be appreciated.

Does anyone know how to upload chat and messages to CEAC because they say file is suppose to be under 2MB and one of my files is 18 MB and thats only chats for 6 months when i try to compress it that doesnt bring it down very much

Good day all.....my wife received NOIR and we are request to submit additional proof of the relationship

please your sincere idea is needed

N:B we have not be leaving together and she only came twice for visit

Thanks

i got to the states through the IR1 visa and my green card was never delivered, even though it says delivered when tracked, i had to pay for a replacement, which has been about a year now, even though i have done the biometrics, Please i will like to know, how long it will take to get my new green card after the biometrics.

I have completed all the necessary documents and fees for my son and NVC approved all the sent documents since February 2021 but no email for NVC for interview date in Nigeria embassy . The last time contact NVC said they still waiting for the embassy in Lagos to set up interview date. Does anyone knows how long will take to get date for my son. I filed this application 05/2019, I'm also a US citizens .