Update 1
Just phoned faults about the problem and they told me that my STB wasnt registered any more so it seems like they sadly did what I was worried they might have done.
Looks like due to the original order being only for a SACM install the order went through as that and all my STB facilities were cancelled.
I then phoned the package change poeple up and got my TV re-enabled fairly easily but I am still waiting on either my new SACM pin (sounds like the servers are running again now for the pin - but a backlog of pins is being processed) or waiting for an order to go through so he can re-enable my STB BB until my new pin arrives...
So I'll wait until I get home and see how much further things have gone