Hello, anyone got the same situation as mine before? got interviewed last tuesday USEM Manila (april 4, IR2) and it went well until the end of the interview, I got a 221g white letter. CO asked for a joint sponsor and its documents. In the letter it is asking me to upload those docs at CEAC before mailing it to the courier. But the only option is uploading it through my petitioner's additional documents since the option to add joint sponsor is long gone.
My question is, is it okay to upload it through petitioner's additional docs AND how long will this process usually take?
I know this is a case to case basis, but for those who had the same situation before, any response is appreciated :)