Stratford (London) to Cambridge advance singles

[gpmartin]

Hello - a (hopefully) straightforward query. I have booked two singles from SRA to CBG and back again. My intended itinerary (and the one I used when booking the tickets) involves changing at Bishops Stortford, and the booked trains on each ticket are between BIS and CBG only. The tickets say they are valid on 'Specified trains &AGA connections only', but they also have a Maltese cross. Can anyone advise therefore whether they are also valid on Underground connections - and if so, on what route(s)? Thanks.

 

[yorkie]

LU will accept it as valid for travel between Stratford and Liverpool Street.

 

[gpmartin]

LU will accept it as valid for travel between Stratford and Liverpool Street.

Thanks!