Some crossed messages here.
NRE‡ have it like this:
Great Western Railway customer advice:
To help with your journey, tickets will be accepted on South Western Railway services via any reasonable route.
Rail replacement buses have also been requested to run between Reading and Guildford.
South Western Railway customer advice:
Customers travelling in the Guildford direction are advised to travel to Aldershot or Woking and then to Guildford. The Farnham / Aldershot to Guildford trains will be taking this route. The trains from Guildford to Aldershot / Farnham will run their booked route.
To help with your journey, rail replacement buses will operate between Aldershot and Guildford as follows:
Rail replacement buses are operating between Guildford and Aldershot.
A further 2 buses will operate from 15:30 between these stations.
But if the line is closed, how come "The trains from Guildford to Aldershot / Farnham will run their booked route."?
SWR» say this:
What's Going On
Due to a landslip between Ash and Wanborough all lines are blocked. Train services running through these stations will be cancelled. Disruption is expected until the end of the day.
What We're Doing About It
We have been informed of a landslip between Ash and Wanborough. All services between Farnham and Guildford are now suspended. Customers travelling between Aldershot and Guildford are advised to travel via Woking.
How we're helping you complete your journey:
- there are 4 replacement buses in operation between Aldershot and Guildford which will call at Ash and Wanborough.
- your tickets will be accepted at no extra charge on Kite Buses between Guildford and Aldershot
I can see no sign of any SWR trains taking the long way round or the short one.
GWR▸ have one train on the Reading side, running a shuttle (to get the schoolkids home, for one thing). On the other side, they appear to only be running someGuildford-Redhill/Gatwick services, but not many.