请各位指教 - 这种情况是凶是福？一般还要等多少时间可以批下来？
多谢！
"we are actively processing this case. However, we have to perform additional review on this case and this has caused a longer processing time. If you do not receive a decision or other notice of action from us within 6 months of this letter, please call customer service at the number provided."