This is typical of businesses that define value FOR the customer instead of listening to the customers idea of value.
Any phone number given to Hilton hotels will result in that phone being called forever with more and more telemarketing sales. Never give out a real phone number to hotels. I usually find the corporate phone number of the hotel and give them that one. Never has an employee caught that the number was their own.
I even pack my own "adult beverages" as the mini-bars in these hotels tend to make everything smaller and more expensive.