Check out this article for full details: http://news.cnet.com/8301-27080_3-20005556-245.html. Long story short they delete all of the data that can identify you when you delete your account. They do keep other data so they can track bugs but they are rather unclear about what that means.
Here is the important excerpt:
What happens to my data after I delete my account?
According to this Facebook Help Center page all personally identifiable information associated with your account will be purged from Facebook's database if you choose to permanently delete the account. "This includes information like your name, e-mail address, mailing address, and IM screen name," the site says. "Copies of some material (photos, notes, etc.) may remain in our servers for technical reasons, but this material is disassociated from any personal identifiers and completely inaccessible to other users. Facebook also does not use content associated with accounts that have been deactivated or deleted."
I asked a Facebook spokesman why copies would need to be kept at all and for how long, exactly when all traces of the data are gone entirely, and whether any data remain on any servers of partners, and if so for how long? Here is his reply:
When a photo or video is deleted, or
when a person deletes his or her
account, we quickly delete all of the
metadata for the photo as well as any
and all tagging and linking
information. For all practical
purposes, the photo no longer exists,
and we wouldn't be able find it if we
were asked or even compelled to do so.
This is similar to what happens when
you delete information from the hard
drive of your computer. Technically,
the bits that make up the photo
persist somewhere, but, again, the
photo is impossible to find. It's
possible that someone who previously
had access to a photo and saved the
direct URL from our content delivery
network partner (this is different
from the Facebook URL) could still
access the photo. However, again, the
person would have to know the URL, and
the photo only exists in the CDN's
(content delivery network's) cache for
a limited amount of time.
Starting from the beginning, at the Facebook sign up page, there is the following
Facebook requires all users to provide
their real date of birth to encourage
authenticity and provide only
age-appropriate access to content. You
will be able to hide this information
from your profile if you wish, and its
use is governed by the Facebook
Privacy Policy.
This takes care of the birthday issue.
For the nickname, there is the following,
Please note that Facebook account
names must adhere to the following
authenticity standards: Your full
first and last name must be listed.
Initials cannot stand in place of your
full name. Nicknames can be listed if
they are a variation of your first or
last name, but only in the format
"First Name ‘Nickname’ Lastname."
Under Facebook Terms, here is what you need to be aware of
Registration and Account Security
Facebook users provide their real
names and information, and we need
your help to keep it that way. Here
are some commitments you make to us
relating to registering and
maintaining the security of your
account:
- You will not provide any false personal information on Facebook, or
create an account for anyone other
than yourself without permission.
- You will not create more than one personal profile.
- If we disable your account, you will not create another one without our
permission.
- You will keep your contact information accurate and up-to-date.
Knowing this and
- the assumption that disabling accounts are automated but appeals are manual
- the assumption that not entering your contact information accurately lead to this
- the assumption there are many, many, many appeals per day
9 days to even two weeks seems reasonable. Someone I knew was banned but appealed, it took a very long while but a well worded polite email plus some patience led to a renewal. This is not going to work for everyone obviously.
In your case, as noted on this appeal page for deactivated accounts (though not new accounts, I think the same process applies)
"Note that writing in and submitting your ID multiple times will not result in a faster response. Once you submit your initial request, it is placed in a queue and responded to accordingly. We appreciate your patience and apologize for any inconvenience this may cause."
There still is information that we need from you to decipher the information further, you said that it is a new account, yet you needed to confirm with a license. This sounds like a re-activation to me. It would be best if you could walk us through your entire process from sign up to roadblock with all relevant links and email correspondences that Facebook sent (REMOVE ALL PERSONAL INFORMATION)
Best Answer
The time required to complete the Facebook ID verification process varies. Generally it takes from 30 minutes to 1 week. In some cases there is no response from Facebook support team for the long time (It depends on why they have blocked your account.)
See this thread Why is ID verification taking so long?, top answer also said to wait for atleast one week.