26. Refunds on tickets that have not been used.If you decide not to use a ticket (other than a Season Ticket - see Condition 36) to make all or part of your intended journey, then:
(a) if the train you intended to use is cancelled, delayed or your reservation will not be honoured, you decide not to travel and at that time you return the unused ticket to any ticket office, the Train Company responsible for that ticket office will, wherever possible, give you an immediate full refund as shown in Condition 27;
(b) if the train you intend to use is cancelled, delayed or your reservation will not be honoured, your ticket or relevant portion of it is completely unused, you decide not to travel and you submit a claim for a refund within 28 days of the expiry of the ticket to the Ticket Seller you will be given a full refund as shown in Condition 27 as soon as practicable and in any case within one month of your claim being received.