PIN 验证
PIN 验证流程是我们账户验证系统的一部分。当您进入注册流程的“业务信息”步骤时，您可以选择通过 SMS 短信或电话接收PIN。
选择其中一个选项后，我们将用您在验证过程中提供的电话号码与您联系，并要求您使用我们的自动系统输入 PIN。
如果未收到电话呼叫，则说明您的电话可能占线。如果您正在使用拨号 Internet 连接，请确保您已断开与 Internet 的连接，并再次尝试注册过程中的 PIN 验证步骤。
如果您在通过电话呼叫接收 PIN 时仍然遇到问题，请返回注册流程，以验证是否输入了正确的电话号码。
如果您关闭了浏览器，可以点击电子邮件邀请函中的链接，重新登录注册流程。登录之后，您将能够在注册系统中从之前中断的地方继续操作。
亚马逊官网原文详情：
PIN verification
The PIN verification process is part of our account verification system. When you reach the Business information step of the registration process, you will have the option to receive a PIN through SMS text message or a Call.
Note: If you select Call, the estimated time to receive the phone call may vary.
After selecting one of the options, we will contact you with the phone number you provided in the verification process and ask you to enter the PIN using our automated system.
Note: You can use any phone line where you can receive incoming phone calls and enter the PIN using your touchtone keypad or by saying the PIN. If you are saying the PIN rather than entering the PIN using your touchtone keypad, be sure to speak slowly and clearly. Also, try entering the PIN using the keypad on your phone. If you're still having trouble entering your PIN, please Contact us.
If you didn't receive a phone call, your phone line may have been busy or congested. If you are using a dial-up Internet connection, ensure your Internet connection is closed and try the PIN verification step of the registration process again.
If you continue to experience issues with receiving the PIN through a phone call, go back to the registration process to verify the correct phone number has been entered.
Note: Check the phone number that was entered during the registration process for errors, and make sure it is error-free and includes a country code and no extra 0s.
If you closed your browser, you can click the link in your email invitation to sign back into the registration process. Once you log in, you'll be able to pick up where you left off in the registration system.
文章来源：亚马逊官方网站
