That's a long way from
won't provision a domestic line to a property where a business is registered
Which sounds like nonsense to me.
I know a dozen people who run business's from home, have residential broadband and separate business broadband.
I know others who just run their business work over residential broadband.
Of course if you call an ISP and ask can I use a residential line for business they will say no. That doesn't mean they would instantly know if you did.
edit: typo
Edited by j0hn83 (Wed 15-Aug-18 15:59:09)