I'm looking to travel to Haverfordwest next week. I'm hoping to camp on the Gower Peninsula on the way back so I need a flexible ticket that allows me to break my return journey at Swansea. However, I've just looked at Trainline and found all the standard trains on Monday are full. I looked at Tuesday instead and tickets are available. However, I want to use the vouchers I got from Transport for Wales for the same journey I made last Christmas that was disrupted because the driver assaulted - they refunded my entire ticket from Beeston to Haverfordwest. It seems I need to reserve the Cross country section of the journey, and the only way I can do that is by buying a ticket from the Cross Country website - i.e. not using my vouchers. Any ideas?