英语高手进,英译中Thank you for your season ticket details received in this office 26 April,2007.The Unpaid Fare Notice was issued as it is a requirement under Section 1 of the National Conditions of Carriage,for a valid ticket/accompanying do

英语高手进,英译中Thank you for your season ticket details received in this office 26 April,2007.The Unpaid Fare Notice was issued as it is a requirement under Section 1 of the National Conditions of Carriage,for a valid ticket/accompanying do
英语高手进,英译中
Thank you for your season ticket details received in this office 26 April,2007.
The Unpaid Fare Notice was issued as it is a requirement under Section 1 of the National Conditions of Carriage,for a valid ticket/accompanying document for the journey you are making to be shown when requested by an authorised person.
Having checked our records the notice has been cancelled but will be recorded per season ticket regulations as one of two occasions that the fare for the journey is not charged over any twelve month period.
If a separate ticket was purchased to cover the journey involved,the cost can be reclaimed from the booking office upon production of the season ticket.
谁能帮我翻译下啊，这封信要我做什么啊？答的好的话有追加分的。

英语高手进,英译中Thank you for your season ticket details received in this office 26 April,2007.The Unpaid Fare Notice was issued as it is a requirement under Section 1 of the National Conditions of Carriage,for a valid ticket/accompanying do
我们于4月16日收到您关于季票细节的来信,
免费旅行通知是国家行李管理第一部分所要求的,请在必要时,将它作为旅行有效票据/相关文件,向有关人员出示.
在检查我们的记录后,该通知已被撤销,但如果十二个月内有未付费旅行,它将在每季票上被记录.
如果您为该段旅行买了另一张票,在季票出来之后,您可以到订票地退掉购票的费用.