Thanks for sharing the details. My file is pending with CSIS department for more than 17 months now.I went through all of these 5 steps.
I paid a total of approximately 7,000 CAD for the process. It consists of three stages, with payments required at each stage if a decision is not reached. The entire process typically takes about a year. In my case, I filed a writ of mandamus after 20 months.