So I have the hotel staff to connect me with their General Manager. What Doubletree Minsk is doing here, I consider to be a scam.

With arbitrary exchange rates they are taking away the control of the final total price from their guests.

Is this anything I can contact Hilton Corporate. Is Hilton allowing its franchise partners to run such a deceptive practice? They must be running thar scam with other foreign guests, as well.

btw: I booked directly at hilton.com.