Here is a response from NRT Hilton reference crew discounts:
We installed a new point of sale system and the discount information was loaded incorrectly. It has since been corrected and now we provide 50%
off F&B in our Terrace Restaurant for all buffet or a la carte meals and
20% off in all other outlets including room service.
Additional discount we have provided in Terrace which we increased from
20% to 50%. We have an issue with crew members coming to the restaurant
collecting food and taking back to their room and we will not allow this
in future.
Likely story.....it was the point of sale system's fault! Still no room for Hilton crews in the Toku.