As I remember from years ago, their default is MPF on TTB Wholesale. They do not do BTW broadband.
In the case of people on ISPs such as Plusnet where the minimum terms of broadband and line rental could often be out of sync, then they were prepared to supply just the broadband on TTB then bring the line across when the other contract expired. AIRI that would be to MPF.
I vaguely recall form reports on these forums that they now allow SMPF with both services on their system, with the line on BTW, but I'm not sure
. At the time I considered migrating my broadband to them it was MPF or nothing.
Migrating just the line to them has always been possible. Mine was long-term with BT, whilst my broadband moved several times on BTW backhaul. When I got fed up with BT's silly phone pricing I moved my line to P8, staying on BT Wholesale.
As for the current finances, I've no idea. You can find out as easily as I could.
My broadband basic info/help site - www.robertos.me.uk.
Domains, sites and mail hosting - Tsohost
Connections: OnePlus 8 Pro max 165Mbps down, 24Mbps up on Three, and B311 4G, tbb tests normally 35-45Mpbs down, 65Mbps off-peak, 9-24 up.
Experience shows us that love does not consist in gazing at each other but in looking together in the same direction.
Antoine de Saint-Exupéry.