SC 189 Issue

Hi, I have lodged my sc189 on 26th Feb for myself as I did not have passport for my kids(one step child). I have added my family on to my application during May'16 after getting their passport. Visa officer said that I need to produce the custody document from court which I have applied and waiting for the final order. In order to speed up my application I removed my step kid for which they asked for custody. Issue: The last communication happened on Aug 2 stating that the person has been removed from my application. But after that there is no reply from the CO. I have sent many mails but to no avail. Is there any way to know why they are not taking decision even though all the other documents are submitted as requested by them. Thanks in advance for your replies