Hello Again All,
So the mystery of XEP and EP has been solved today. I received an email from CIO Sydney on April 15th, 2015 with an Application number starting with XEP. Today, April 20th, 2015, I again received an email from CIO Sydney stating my Client ID and the same number, but this time starting with EP. The message also states that payment is acknowledged and has almost the same format as previous email.
I guess you all will also receive the same email shortly and that, I think should be called "AOR"
Thanks