Thanks for posting and welcome back to the community.
We wouldn't be able to un-migrate you back to a phone that uses the wallsocket, as the migrations are happening for every customer.
Changing to the phone service via cable is a government objective and this has to be completed by 2025, we are choosing to take the change over now to ensure all of our customers have been migrated prior to the current telephone exchange being closed down in 2025.
See more below on this;
https://www.virginmedia.com/help/landline/switchover and https://www.futureofvoice.co.uk/
If you'd like us to get an engineer visit out to relocate either one of the hub or the router, please let us know as we're more than happy to do this