Journey: single from Cambridge to Paddington, any off-peak time (e.g. 12:00 today), no railcard, flexible times selected to prevent advance tickets being offered.
TrainSplit suggests an itinerary of Cambridge to Liverpool Street (depart 12:03, arrive 13:15) and then Crossrail to Paddington (depart 13:31, arrive 13:42), with a fare of £24.90. The ticket is a super-off-peak single from Cambridge to London Underground Zones 1-3, and is described as "Not valid for travel via (changing trains or passing through) London Terminals. Restriction D1 applies".
Question 1: How is a ticket which is described as not valid via London Terminals valid for a journey which involves a change at Liverpool Street and a final destination of Paddington?
Question 2: How do I find this ticket on brfares.com? I've tried destinations of "London Zones 1-3" and "Zone U123* Londn" but it doesn't show up in the results for either.
TrainSplit suggests an itinerary of Cambridge to Liverpool Street (depart 12:03, arrive 13:15) and then Crossrail to Paddington (depart 13:31, arrive 13:42), with a fare of £24.90. The ticket is a super-off-peak single from Cambridge to London Underground Zones 1-3, and is described as "Not valid for travel via (changing trains or passing through) London Terminals. Restriction D1 applies".
Question 1: How is a ticket which is described as not valid via London Terminals valid for a journey which involves a change at Liverpool Street and a final destination of Paddington?
Question 2: How do I find this ticket on brfares.com? I've tried destinations of "London Zones 1-3" and "Zone U123* Londn" but it doesn't show up in the results for either.