The Warehouseman
Midfield
If your ticket was only to Exeter then he was right and you could have been issued with a penalty fare since you had boarded the Exeter-Exmouth train without a valid ticket. You should have bought an Exeter-Exmouth ticket, either online or from the guard on the Paddington-Exeter train, before boarding the Exmouth train. Or, as you say, you should have gone through the barrier at Exeter, bought your ticket to Exmouth from the machine/office there, and then gone back in.
For those interested, railforums.co.uk is a goldmine of useful information on all aspects of the railway, including ticketing and routing, and help and advice as to when you can and can’t board without a ticket, claiming delay repay, refunds, etc, etc.
For those interested, railforums.co.uk is a goldmine of useful information on all aspects of the railway, including ticketing and routing, and help and advice as to when you can and can’t board without a ticket, claiming delay repay, refunds, etc, etc.