URGENT: NYU Housing application

<p>I'm filling my housing application but I'm stuck on the 6th step:
Here's what it says:</p>

<p>Students must rank order their hall preferences from among the halls available for general assignment. Please note that hall placement is based upon availability.
If you indicated a preference for a lower cost assignment in the previous step, please make halls with low cost options first. These buildings include Broome, Coral, Greenwich, Lafayette, Second St, or West 13th St in our upperclassmen halls. There are no designated low cost options in dedicated-graduate housing.
Although every effort will be made to accommodate your preferences, they cannot be guaranteed.
For more information about residence halls including rates and amenities, please visit our website at On</a> Campus Living.
Students who wish to re-order this list after the initial submission must first reset all preferences to the default setting of "-Please Select-".</p>

<p>But I don't have any choices!!!
When I click on SAVE&CONTINUE it tells me: At least 4 Preferences are required.
How am I supposed to rank my hall preferences when I don't have any in the list??
Anyone??:(</p>