White Castle Halloween Promotion

*Valid only for a delivery order at participating White Castle restaurant locations via the Grubhub app while supplies last. Subject to availability for a limited time only. Must select promotional menu item to qualify for discount. Cannot be combined with other discounts or cash. Limit one use per diner. Only valid on personal (non-corporate) accounts. Expires 11:59 PM ET on 10/31/19. Grubhub and White Castle reserve the right to cancel, suspend and/or modify the offer, or any part of it, for any reason at any time, including, without limitation, if any fraud or technical failure impairs the integrity or proper functioning of the offer.