Outward and return on Advance Singles - refund on both if outward is cancelled?

[startingaparty]

If you have two Advance Singles, one outward and one return, are you entitled to a refund on both tickets if you're outward journey is cancelled and you choose not to travel at all (even if your return journey isn't cancelled)?

 

[Adam Williams]

I would expect a retailer to use common sense here and issue a refund, if the second Advance was clearly intended to be used in conjunction with the first as part of a round-trip.

I think this is also in alignment with the PRO:

• refund of the fare when the journey will no longer serve the passenger’s originally planned purpose. The refund will include the return journey where appropriate

From a practical perspective, it would be probably be easiest to claim this if the two tickets were booked together in the same transaction/journey, but that shouldn't be a requirement.