請教:父母申請綠卡，今天收到移民局要求I-864補材料.不知道到底要補什麽？

通知上寫道：

Form I-864 Affidavit of Support was submitted; however, it was not from the petition/ sponsor

In order to process your application further, submit a completed and signed Form I-864 for the petitioner/ sponsor listed on Form I-130 or Form I-129F.
Form more specific information, see form I-864 instructions, page 2, "Who Completes and Signs Form I-864?"

是不是說我沒有簽字呀，可是我檢查過肯定簽的，就是顏色淡點。