如何Withdraw 我的NIW I-140

My EB1a 485 was approved recently. Now I got an email saying that my NIW I-
140 was transferred from TSC to NSC today for processing. I know I should
not worry about NIW any more. However I want to close out this issue by
withdrawing my NIW I-140. My questions are:
How to withdraw this case by myself? is it just writing a letter to USCIS?
How long will it take to complete the withdrawal?
Is the money paid last year refundable?

Any experience would be appreciated.

所有跟帖： 

• 回複：如何Withdraw 我的NIW I-140 -pjiang- ♀ (544 bytes) () 05/01/2009 postreply 20:51:35

• 回複：如何Withdraw 我的NIW I-140 -oldman11- ♂ (248 bytes) () 05/02/2009 postreply 13:32:34

• 回複：回複：如何Withdraw 我的NIW I-140 -antenna1- ♀ (178 bytes) () 05/02/2009 postreply 14:20:49