I can't access in my Facebook account

Hello,
When I logged into my Facebook account, this form of text appeared. Here is the heading text of that message:
Confirm Your Identity
To log into your Facebook account, you need to first confirm your identity

We'll take a look at the documents you submitted and get back to you.
If we need more help confirming your name,we'll reach out for additional documentation.

If you give me any ideas.i can't access in my Facebook account for 30 days.