I don't agree with the view of Nectar that if one has arranged employment with proper AEO, it expedites the case. I had submitted AEO during December 2008. My medical was done during Feb 2009. Medical expired in Feb 2010 due to delay in Background checks. I was asked to go for another medical in August 12, 2010. Then they asked me submit PCCs from Saudi Arabia. All documents submitted on October 10th. There is no response since then. I will be completing 60 months in Feb 2010 and my 2nd medical will expire in August 2011. They don't even offer a proper reply when you write. It is not an issue that one is occupied. It is the attitude of employees working in London immigration center. I read the replies from other immigration centers; they are entirely different and convey more details, and apologize for delays. I can never expect the word sorry from Canadian immigration center in London. God bless Canadian immigration center at London!!!