wrong train

Last friday,i went to livepoor because my birthday.His party at friday night 8 o'clock.That's not first i go to livepoor, i arrive Manchester at 6 pm.If i got right train,i would arrive Livepoor at 7 o'clock.But tragedy is happen .I knew i would take train at 7 pass 5,but suddently i saw the board . manchester-livepoor 7 o'clock. I happy with that,and i get in .When the train start. i listen the custmer said : the train is to .... call at ....!oh,my god .i got wrong train. Because the platfrom is 5 not 3.