请问8老师，这个问题怎么回答？

请问8老师，我的父母在2020年2月来美，5月申请延期，打指纹的通知10月份下来的，但他们在9月份就离开了。我写信去说明，移民局回信说：

“A review of official records shows that you departed in the United States on September 10, 2020. Because you have departed the United States, you will be unable to satisfy the biometric requirement of the Form I-529. Regulations require all applicants on a Form I-539 attend a biometric appointment at their nearest ASC. Please note, USCIS acknowledges that submitted withdrawal; however, due to the request not being signed by the applicant, USCIS is unable to process the request.

USCIS is denying your application as a matter of discretion. Should you seek to re-enter the United States as a B-nonimmigrant, you will be required to establish your admissibility again and be granted admission as a B2 nonimmigrant by US Customs and Boarder Protection. "

我们的问题是，

1. 我的父母延期拘留了吗？在EVUS时，有个问题是“Have you ever stayed in the United States longer than the admission period granted to you by the U.S. government?“ 问题应该回答yes还是no？

2。现在的十年签证还能用吗？还是已经被取消了？谢谢您！