If yes, has authorization letter been obtained?

是否已取授权信？

Q5: How should a typical Authorization Letter be written like?

问题五：典型的授权书如何书写？

Authorization Letter for us authorizing us to deal in your products.

我们授权书，授权我们处理您的产品。

The Employer Payroll Autopay Service Authorization Letter shall be conclusive.

以雇主支薪自动转账服务授权书为准。

At last, I hope you can sign the authorization letter in the attachment, and send it back to me!

最后，我希望你可以在附件的签署授权书，并寄回给我！