Update 30 October 2017:
I've have another promising update. OR have informed Cerberus that they started their night cabling work on Thursday 26 October.
Cerberus are still waiting on more information from OR which they should get by Wednesday on how they are progressing with this work.
So at least some physical work seems to be taking place and my order is getting real momentum with OR.
I'll update you all shortly, with hopefully good news and not OR excuses about night resources or blocked ducts etc.
Do any of you have any tips of what signs of physical work I can go try and find on my street to assess progress? I know they are running the cable from a cabinet 1km away from my house so I will have to go hunt for it. Might be a great excuse to go for a run.