Option 1 then. She will get a letter, a router and a transfer date. They have a vulnerable people help line. My 90 year old father in law was swapped from PN to EE last week. Very straightforward process.
1. Accept the transfer to EE
2. VOIP
3. Forget landline and go 100% mobile
In a few years having a phone tied to a building rather than an individual will be as quaint as a red telephone box.
The higher depreciation means you can get some great used deals. Our 7 year old PHEV has been great and we saved 6K off the list price. Next car will be a BEV.
Had a Ioniq PHEV since 2019. Well appointed and cheap to run. A couple of issues but still very happy with it. Most journeys are 100% electric, long journeys are hybrid.
Not sure the site would be suitable for development given the marshy nature of the ground. An extension to the wetland reserve which is next door would be one option.
A combination of end of life, running cost, being unable to justify energy use for a severely declining number of listeners. It doesn’t add up. I would imagine the masts will go eventually.