I was questioned under caution by TIL after not buying a ticket before boarding to go one stop last month. Most people just buy on the train, the employees have always been lax about it. This has never been a problem and I stupidly didn't realise it was a case of "you must buy before you board or face risk of prosecution". It was busy so nobody came down the train and then we were at the next station, I got off and went over to what I thought was a ticket desk, except it was manned by revenue protection TIL. My mistake, I know. I then received the letter with the payment of £80+ and I had the following e-mail exchange with TIL. Me: “If I respond to the penalty fare with my defence can it go against me e.g. Will the offer be taken away and a worse one be proposed instead, or is it fixed now?” TIL: Thank you for your email. Yes you can appeal your letter by putting your version of events in writing and sign and date the letter and send to us to be reviewed. Based on this I wrote and appealed, within the 21 days. In response to this they sent me a new letter with more than double the amount being asked for! Despite me asking in advance if I'd end up worse off trying to appeal. Any advice? I'm prepared to pay the original amount, not the double and I wouldn't have appealed if they had warned me I could be charged more... In the most recent e-mail they told me "there is no Penalty Fare scheme operating in the South Wales area." - I don't know why they didn't say anything when I was talking to them about my penalty fare then... Any advice appreciated please, the letter talks about court and summons and I just don't really get it. Could I get them to revert back to the original fine given I acted on my correspondence with them?