Paul Corfield wrote

Having just perused the London Connections map I noted the
interesting
complication that is called Tramlink. This links up various TOC lines
and operates on a completely different charging basis. I wonder how
PAYG
is going to deal with that for "through" journeys!

Since, AFAIK, only travelcards and not through tickets from say Purley
to Wimbledon are currently valid via Tramlink, I suppose this would be
treated as though Tramlink was a tfl bus ?

Or are there through fares left over from when Tramlink was a rail link
?

--
Mike D