I-485 status, what should I do next?

去年，我递交了两个I-140 (NIW and EB1A)， 两个I-485,分别连接到他们对应的I-485上，结果两个I140都批了，迟迟不见绿卡下来，询问结果，结果如下：

“…This case was sent to a supervisor, but because of the VISA was not currently available, the case was sent back to the shelf.

LIN ######, priority date 1-26-07 E21

LIN *******, priority date 1-8-07, E21

According to the June VISA Bulletin 2008, the priority date for 2^nd preference Chinese is 4-1-04. It appears that a VISA is not currently available”

 

我的问题是：

1. 我的LIN *******, priority date 1-8-07,明明是EB1A，那么说应该是

E11 An alien of extraordinary ability，　而不该是Ｅ２1， 对不？如果是这个问题导致的绿卡延误， 那么我应该跟谁联系，让他们更正错误？

2. 如果是因为有两个两个I140和两个I485的问题导致的，我是否应该将基于NIW的485 撤下？

多谢多谢。