Office of Registration, is the office in which a wizard or witch can apply for a vault. One must ask for one in the comments. The office will give you a slip and tell you what kind of protection you want on your vault and will give you one randomly.
Gringotts, The Wizarding Bank's Official Registration Form
created by: Aguro the Creative
1. Which gate do you wish your Vault to be Located in?
2. If Vault is in Gate of Ragnuk, what other type of security would you wish?
3. What is your user account? (Leave Link)
(Follow this format when asking for Vault in comments)