You must bring more evidence of your marriage. Bring chat logs, call logs, pictures of both of you from wedding and after wedding and also bring money transfer receipts. You have to do this and bring with you at interview.
I have experience that's why I'm saying to do this. We waited 2 months and they responded with " we need more proof" which was more then enough. We waited more then 2 months and then they responded with " we need more proof", note that I submitted more the. 200 pages worth of chat logs, photos. We waited more then 2 months again and they said " we don't have your documents". Then we called lawyer and found out they have the documents and filed mandamus. They are playing with your life fam.