@besbi07 in our case, we expect that our files will be assigned in ADVO but we tried requesting it to be transfered in Manila Visa Office, but to no luck after 2 weeks of receiving our file number (AOR from CIC) i heard nothing from the Manila Visa Office, so I sent them CSE, and that's how i was informed that our file was assigned in ADVO..
Maybe you can try to send CSE in AdVO but do expect to receive their reply around 28days,but since you are in Dubai maybe you can call them.. i also read from other forum that there files was also transferedin London Visa Office though they're living here in Mid east..
Hope this helps