I907表中的一堆问题，请指点

I-907表问题：

1.       个人申请， company contact information 是不是不用填写

2.       有2个选项感觉一样

(1). You are the petitioner who is filing or has filed a petition eligible for Premium Processing.

     (2). You are the applicant who is filing or has filed an application eligible for Premium Processing.

3. Part 2. Information about Request 下面这些除了第3个，其他的4个都不知道哪里能有

  (1). Form number of related petition/application

  (2). Receipt Number of Related petition/application

  (3). Classification/Eligibility Requested: EB1a?

  (4). Petitioner/Applicant in the Relating case

  (5) Beneficiary in the Relating case

5. Part 4 Original Signature of Attorney or Accredited Representative 这个部分，原来以为没有律师代理就不用填，但是后来发现下面有这么一行字

        Same individual as signing above in Part 3. 
这么说还是要填写了？