It is the same for everyone....my address also went missing on 27th Jan 2012 and reappeared last week with same details....I don't think it is anything to worry about....amerian said:change in ECAS today
We received your application for permanent residence on March 21, 2011.
We reviewed your application and sent you a letter on April 14, 2011 to www, xxxx, yyyy, zzzz, Rawalpindi, Pakistan. Please consider delays in mail delivery before contacting us. If we have sent the letter to the wrong address, please contact us.
whereas as actually they sent me an email NO LETTER..........
Whats this ?????????????????