I applied for my wife in May 2014 after 2 months they accepted application then in September 2015 i received email for medical report and interview letter.They conducted the interview of my wife plus additional documents(police certificate and marriage photos)in Pakistan(ISLAMABAD).My wife did medical and prepared documents then before 3 days of interview date i received email that for reasons beyond our control your Islamabad immigration interview cancelled. we will notify you with your interview date in January in next 30 days. so i am worried please let me know what i should do?i want to know reason