1. Rent = daily unit price * number of travel days * number of units. The number of travel days is calculated from the day of departure (pickup date) to the day of return (return date). Overtime rent = HK$10 * number of units * number of overtime days 2. Deposit (can be paid in cash , transfer, Payme and credit card) [Deposit instructions] Credit card deposits can only be paid at the airport counter: the deposit is $500/unit, and no deduction will be made if the pre-authorization is frozen. The bank will cancel the pre-authorization within 30 working days; cash, bank transfer and Payme will be paid at the airport counter. It will be returned immediately when returning the machine. If the main body of the machine is lost, the entire deposit will be deducted. If some parts are lost, the corresponding fees will be deducted according to the counter standard. 3. If you need to renew the lease after picking up the phone, please call customer service before 16:00 one day before the original return date, and the customer service will confirm and arrange the renewal for you. If you do not return the phone on time, you will not be able to apply for renewal. If you do not return the phone on time, you will be charged. Overdue rent will be charged at HK$10/day. 4. The device includes: Pocket WiFi mobile Internet device, plug, USB data cable, and protective case.