I boarded a train without a ticket, on route to London, i had

I boarded a train without a ticket, on route to London, i had the ticket from Birmingham to London, but there was large party of children and there teachers/ carers obtaining tickets, if i had waited i would have missed the train and onward connection to London, a ticket inspector was on the service, and issued a penalty ticket i aced could i purchase one from the guard, ticket checking and issue person who was further along on the same carriage, the inspector said she would not do allow this and accused me of trying to cheat, i had the ticket to show i had purchased online fort eh Birmingham to London Journey, she was not interested and started raising her voice over the issue, and abused my rights by way of her loud voice everyone on the train heard the conversation, i was actually a little frightened because her attitude was that i board the train with then intention of not paying, she would not let me pay the guard / ticket checker and issuer of tickets on the train, when i got of at Moor street station, i went to the ticket office to tell the administrator about the situation, she said the inspector is know for her " bolshi ' way, and said she should have allowed you
to purchase a ticket on the train or at the ticket office at Moor St, especially as i had tickets to London, had there not been a large crowd of children in excess of 30, i would have purchased a ticket at Stourbridge Junction, cost about £4.50, had i have waited i would have missed my connection to London, for a appointment, i was shaken and upset at this inspectors attitude and way of dealing with me her voice was powerful and abusive in nature, has she have spoken quiet and normal and not accused me of trying to cheat, the situation would I'm sure have been resolved, she was of Asian colour and i feel she abused my rights as a human being, this was in Nov 2013, i have been informed today that a court case is set for early July at Birmingham magistrates court, what are my options