The Ofcom regulation for migrations require a minimum of ten working days, which they specify as Mondays to Fridays inclusive.
Today is not a Bank Holiday, but Easter Monday is. Assuming Ofcom think a Bank Holiday is not a working day that takes us to Friday 13 April

.
The point is that (as I understand it) this is not a migration. Simply a product upgrade within Plusnet. As far as I know there are no Ofcom regulations about that. But maybe the ISP, or more likely Openreach, think the migration regulation applies.
My broadband basic info/help site -
www.robertos.me.uk. Domains, site and mail hosting -
Tsohost.
Connection - AAISP Home::1 80/20. 200GB. Sync 71357/13895Kbps @ 600m. BQMs -
IPv4 &
IPv6
Edited by RobertoS (Fri 30-Mar-18 14:47:30)