1. If you want to travel from somewhere like Rainham Kent (RAI) to London Terminals one way by HS1 and one way via Dartford (DFD), can you purchase an off-peak day return (CDR) route NOT VALID ON HS1 for £17.20 and get a one-way change of route excess to PLUS HIGH SPEED for £1.65 or do you have to buy a HS Upgrade OP for both legs for £3.30? (The CDR route PLUS HIGH SPEED would cost £20.50 and a one-way upgrade also costs £3.30.)
2. What if you have a CDR from Strood Kent (SOO) to London Terminals route DARTFORD NOT HS1 and want to travel one way on HS1? How about both ways?
3. How about a Super Off-Peak Day return (SRR) from Dumpton Park (DMP) to London Terminals route NOT VALID ON HS1, again wanting to travel HS1 on one or both legs?
You may assume in all the above that the time restrictions are met.
2. What if you have a CDR from Strood Kent (SOO) to London Terminals route DARTFORD NOT HS1 and want to travel one way on HS1? How about both ways?
3. How about a Super Off-Peak Day return (SRR) from Dumpton Park (DMP) to London Terminals route NOT VALID ON HS1, again wanting to travel HS1 on one or both legs?
You may assume in all the above that the time restrictions are met.