我们的是EB2。去年11月初移民局收到RFE，说60天内就会有决定，但是一直没有回音。上个月中打电话去问，前天收到移民局的信，这是我们打电话到TSC问情况后三个多星期，他们寄来的。
内容：
Based on your request we researched the status of this case. 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 below.
请问有人收到过相同的信吗？结果如何？是不是在这6个月里又没有声音啦？是不是现在处理的速度慢了？能不能在这中间在打电话去问啊？