Would this..
http://www.nationalrail.co.uk/times_fares/prb652dac35ce74101b69190b10455bf.aspx
.. be valid on the Cambridge route?
The map hasn't been updated but the text says "Thameslink DaySave offers you unlimited Off Peak travel on Thameslink services on the day of validity. DaySave tickets are not valid on the services of any other train operator."
From memory (it's years since I used one) the ticket itself just says "Thameslink Only".
http://www.nationalrail.co.uk/times_fares/prb652dac35ce74101b69190b10455bf.aspx
.. be valid on the Cambridge route?
The map hasn't been updated but the text says "Thameslink DaySave offers you unlimited Off Peak travel on Thameslink services on the day of validity. DaySave tickets are not valid on the services of any other train operator."
From memory (it's years since I used one) the ticket itself just says "Thameslink Only".