I have spoken to first great western,national rail enquiries and just come back from Eastbourne station because if you do not have a reserved seat you will not get on the 10.00 or 11.00 from Paddington as the police there will stop you,as I bought my ticket last week,I now have to do another route cos the above 2 trains are fully booked,so now I have to leave Eastbourne at 5.37 to Brighton and go via fratton to Cardiff!!!