我人在国内，想定6月灰狗的汽车票。
付款方式选了pay with cash in 7-11，我输了我们定的住宿的邮编，是不是收到确认邮件后打印出来拿到店里就可以了？
在7-11付款里面有两条条款不是很明白，哪位大牛给解释一下？万分感谢！
• Advance Purchase fares must be converted to a purchased ticket receipt at your local 7-Eleven store by midnight by a specific date and time. For the date and time, please refer to the confirmation receipt at the end of your purchase. All other fares must be converted to a purchased ticket receipt within 2 days of ticket order or no later than 2 hours before departure time. 是不是按确认单上注明的指定时间内，拿去7-11付款就可以了？如果一次付清，就没有尾款的概念了？
• A printed 7-Eleven pass along with valid photo ID will be required at point of origin. valid photo ID是什么东西？
中国护照可以吗？
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还有是不是通过7-11是需要每张票支付18USD的费用？
网上订票需要填写手机号码，没有美国的手机号咋办？