伦敦的牡蛎卡“PAY AS YOU GO”是什么意思?

伦敦的牡蛎卡“PAY AS YOU GO”是什么意思?它和普通的牡蛎卡有什么区别?谢谢!

普通的Oyster卡就是pay as you go,意思就是说,你坐一次(go)付一次的钱(pay),你如果没有满25岁的话可以办一张railcard,就是一般说的young person card(应该是涨价到27磅了,但是如果你需要坐火车的话这个卡帮你打一次火车票的折就能帮你把27磅省回来啦~),买火车票打6.5折,跟你的oyster绑定之后你的每次pay as u go也是有6.5折,同样乘坐BUS也是有折扣

student agency 订票问题。。。。。。。。。

通过手机订票,收到以下邮件。是订票成功的意思吗。我还没付款,有点搞不懂Credit Ticket registrationDear customer,your registration has been completed successfully.Thanks to the registration you can now book seats on coaches without having to collect your Credit Ticket. If you prefer to carry your Credit Ticket with you in the form of a plastic card, you can come to one of our points of sale (http://jizdenky.studentagency.cz/Contacts?country=CZ&groupCapability=CUSTOMER_CARD_SALE), where you will be issued your Credit Ticket after presenting your ID.You can top up your credit at our points of sale (minimum deposit being 300 CZK) as well as on the Internet by a credit card and via PaySec, SuperCash or a bank payment.With your topped-up Credit Ticket you can book tickets for all national and international coach and train services offered in the sales system, on the Internet or by a text message.Enabled booking service via SMS, you can book your ticket in the following form:SMS XXXXXXXXX DDMM HHMM AA BB S sending to the number + 420 736 333 999.-----Credit Ticket Holder´s data: *********Credit Ticket Number: *************-----To log in to your Credit Ticket, you need to know your number and password.You need to know your Credit Ticket number for the check-in before you board the bus/train.Thank you and we wish you a pleasant journey.Yours STUDENT AGENCY and REGIOJET reservation system