Is there a direct link via the call platform or by email to the Dispute Resolution Team?
I have had an ongoing issue which remains open ( 5 months ) even CEDR's involvement and adjudication appears weak.
All I wanted (originally) was a replacement router which I believe is plug and play to test a theory of connection irregularities on my BB, the fuss and bother to date is most frustrating.
If you've gone to CICAS and that process has ended, I doubt they will open up the same issue again with you.
Modem/hubs are plug and play as you say - but also need to be updated on your account so they work correctly.