From my understanding, the information that I have needed to access has all been given to me. If there is anything which they are failing to give me then I would begin to be suspicious but so far it's been easy to access info (past he first few stages that is).
AJNH I too am waiting to hear back from CTC about a phase 4 interview, however I have been pencilled in for a January date as I was meant to have my interview in September but couldn't attend. It's keeping me on my toes but once I know they are coming over it will be a relief!