I am writing to respectfully request your consideration regarding a reimbursement for a train ticket I mistakenly purchased for the wrong travel date. On July 18, 2025, I bought two tickets from Paris to Zurich to September 30, 2025 for a total of CHF 133. Unfortunately, I intended to travel on September 29, 2025, and only realized the error too late. As the tickets could not be changed, I had to urgently purchase new tickets for myself and my wife on the correct date, which cost CHF 359.40. I understand that, based on the fare conditions, the original tickets may not be eligible for reimbursement. However, I would be very grateful if you could consider any possibility of a partial or full refund to help offset the financial impact of this mistake. Thank you for your time and understanding. I remain at your disposal should you need any further information.