I've tried getting the 10.0.2 update a couple of times now, but it wont
bundle after its finished downloading. Just sits on 0%. Was having the same
problem with the 10.0.1 update. (the system is 10.0.1, but i cleared the
update then tried downloading it again)

system was originally installed as 10.0.0 and updated through system update
back when it was first available