In looking though ticketing options, I was reminded of Rail Warrants ...
https://www.atocrailwarrants.org/the-rail-warrant-account. ... I can recall being issued with one in the past (by a
TOC▸ ?) and what a 'fun' thing it was to exchange. Are they still used for forces travel?
Rail Warrant Accounts
The Rail Warrant Account provides a service for a limited number of organisations allowing access to rail travel across the National Rail network.
Account holders receive an account invoice showing tickets issued along with confirmation of journey details, and payment for tickets is made by direct debit from the account holder’s bank account.
Rail warrants cannot be exchanged at London Underground ticket offices and cannot be used in Northern Ireland or the Republic of Ireland.
Eligibility
Rail warrant usage is now restricted to a limited number of organisations.
New account applications are considered only for organisations that have a specific requirement to issue rail warrants, such as purchasing rail travel for vulnerable people etc, where the usual account options would not be suitable.