Others have gone out of business, leaving customers with unused, worthless vouchers.

有些商家已经倒闭，用户拿着无用的，无任何价值的优惠券。

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Safe keep and register business chops, user Id password and critical vouchers, follow handover policy.

妥善保管业务用章，操作密码和重要凭证，办好交接和登记手续。

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This concert tour in 2011 in Seoul Cultural voucher plan was to proceed as part of the business, tour buses for the convenience culture vouchers are also available.

这在2011年巡回演唱会在首尔文化券计划的一部分进行商业，旅游巴士，方便文化的凭证也可提供。

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Mr. Black noted passengers were compensated with vouchers toward future flights in varying amounts depending on whether they were in coach or business-class.

WSJ: Flight Nightmares Overshadow Airlines�� Improving Record