i want to use this opportunity to thank each and everyone on this site but mostly to those who answered most of my concerns and questions. Also will advise all the waiting and new applicates,if you want to spend up your process and avoid being asked for interview or documents request.Please and please,make sure your application information is up todate.if you think the proof you sent with your application wasn't enough at the time you sent off the documents,please send new more proofs because,when you keep sending ongoing evidence to prove your relationship,it helps to weave off interview and documents request which takes more extra time.keep updating your file and dont wait for them to ask you for any documents,i believe with God,victory will be for everyone.and not to always forget,Prayer is very important, specially the visa officer who will handle your file.You have to always ask God to grant you a good officer and to always be in a good mood when ever he/she have to do anything on your file.
Between 8-9 months,i believe you should be asked to submit your passport without any delay
hope this encourages everyone..
all the best