contact FBI through congressman

I just got an email from the assistant of our congressman saying, "I spoke with the FBI today and they said they are currently backlogged on responded to Congressional inquiries. They said it can take between 60-90 days to respond. It has now been 60 days so if I don’t hear something in the next month, I will try to contact them again. Sorry for the continued delays. " Anyone have the same experience? Please share!