Try your best and try hard to - 回复:EB1A approved, NIW pending,
re-link the I-485 to EB-1a I-140.
Someone mentioned it's quicker to submit a 2nd I-485.
Canceling check won't help most likely.
http://blog.wenxuecity.com/blogview.php?date=200708&postID=19650#cancelPmt