Your ID, your birth certificate, your papers — kept somewhere that belongs to you, not to us.
Point your phone camera at it. That is all — nothing to remember, no password.
Come to the community centre. Anybody there can print you a new code in about a minute. Nothing of yours is gone and nothing has been deleted — the code is just the door, not the room.
Everything is still there. However long it has been, whatever happened — your papers did not go anywhere and nobody threw them out.
Salt + Light does not store your documents. They are held for you at MeCentral, in a vault with your name on it, and you keep it wherever you go next.