律师打电话问status,收到一封回信，内容如下：
Type of service requested: Non-delivery
The status of this service request is:
We find no non-delivery in our system for your I-485 application that is still pending at the Nebraska Service Center.
If you have any further questions, please call the National Customer Service Center at 1-800-375-5283.
费解，什么意思？