The deposit at the Hilton Dubai Jumeirah hotel is 100 USD per room per day, in cash or by credit card. If you do not want to leave it, you can try on arrival to ask the receptionist instead of the deposit to take your passport as security, to disconnect the phone in your room, to release the mini-bar and transfer your stay in the hotel to the Cash basis, that is, you can not write anything to the number and, for example, drinks on the beach or in a restaurant will have to be paid immediately