The requirements for documents needed at check-in depend on the type of accommodation and the applicable regulations. For hotels and other accommodation facilities, a Russian passport, an international passport, or a driver’s license may be accepted. For apartments, serviced apartments, and other properties where check-in or contract conclusion is carried out according to the rules of a specific property, the required documents are determined by the property itself. Front desk is open 24/7. For check-in instructions, guests need to contact the administrator in advance at the phone number on the booking confirmation. Placement on additional places is possible. The cost of additional space is 50% of the cost of the main placement. The prepayment amount is 30% of the total cost of living. Prepayment is refunded if the reservation is canceled at least 14 days prior to arrival. Payment must be made within 48 hours after receipt of notice of payment.