Similarly,

Today I went from Epsom to Farrindon (I eas going to go via FCC at
Wimbledon), my ticket was to Farringdon Not Via Underground and cost £9.20

Except i missed my FCC connection so I stayed on the SWT train to Waterloo.

I went over the bridge to Waterloo East, to London Bridge and to
Farringdon on a different FCC train.

Was my ticket actually valid this route? I waved it at all and sundry
and they seeemed happy..

Where can I find out route validity for myself ...

mf