Of late, Facebook has devised many measures to check if the account is used to send spam. Make sure you are getting a message saying, your account is blocked for security reasons. If yes, follow the steps below. Please note that all the accounts have the same criteria for getting blocked. There are decisions taken on case to case basis. Here is why your account gets blocked.
1. When Facebook updates its database, it locks in some accounts and performs its optimisation/updating tasks. In such cases, it should last an hour or so to see your account automatically unlocked. In your case, this definitely is not the case.
2. If you are sending too many friends requests, it results in getting your account locked for a couple of days. Check if that has happened with you. In such cases, Facebook lets you know the remaining days you will stay blocked.
3. Someone might have reported you to be spamming. Please note that this happens when more than a couple of persons have reported you. There could be many reasons. It could be the posts you share. They could have inappropriate content in them. You will need check for such incidents.
4. Facebook has subtle security systems that identify if you have a fake account. A fake account with a unreal name or profession, or any such personal details might have been identified. It also happens when an unknown friend has reported you of having created a fake account. In your case, this seems to be the possible reason. Though you said you have submitted your documents, they will definitely not match with your real name as you have stated that the account does not have your real name. When you don't have your real name on your account, there is no meaning to send personal documents which would be in your real name.
Only option left for you is to delete the account, and create a genuine account with your real identity.
If you still think your account has been blocked by mistake, you can appeal through the link https://www.facebook.com/help/contact.
Live....and Let Live!