Thanks, looking forward to get the mail and then will be posting further.Yes, the email will give you a couple of generic reasons. You saw those in the other thread.
While GCMS notes give more detailed information, it's often more then enough to read the generic reasons and check your profile. For example, if your refusal letter doesn't say anything about your financial situation, we don't have to waste time on it.
GCMS notes are most useful when your profile looks very strong and it's not at all obvious why you were refused. Your case isn't like that. You don't really need the notes just yet.