I don't see where Ofcom come into this, unless you've misunderstood what I'm asking. I'm having difficulty framing the question.
Let's try this scenario.
I set up an ISP. I don't intend to install my kit in exchanges, or have my own national network, though I will have links to a WBMC node and my own internal network plus peering links. I decide on WBMC.
I order broadband for my customers through BTW.
If I wish to supply lines to my customers, do I order direct from Openreach, or do I/(can I) order from BTW, even though the end product is Openreach WLR3?
The indispensable man or woman passes from the scene, and what happens next is more or less the same thing as was happening before.
My broadband basic info/help site - www.robertos.me.uk.
Domains, site and mail hosting - Tsohost
Connection - Plusnet
UnLim Fibre (FTTC). Sync 58162/14182kbps @ 600m. - BQM