The driving licence is mandatory for renting a vehicle and must be presented at pick up time. 
Sure, SCDW/LDW insurance option is available in the booking form.
Call check out location where you rented a car or pay them a visit.
All our rates includes unlimited km/miles.
On your reservation confirmation is stated what is included in the price. 
Yes, if there is a breakdown or you would like to make an upgrade of a car. This is subject of availability.
On this link you can modify or cancel your booking http://www.kompasrent.hr/find-reservations.html
Sure we have, contact us and we will check your discount percentage.
Kompas may permit you to cross the border with the vehicle. This varies according to country of rental, car categories and the countries you wish to visit. Please check on our Terms. Cross border fee may apply!
Kompas provides clients with complete 24-hour emergency road side assistance. The numbers to be called are printed on the rental agreement and on the rental agreement wallet. In many countries, the number is also on the windscreen of the rental vehicle. In the event of a breakdown or an accident, you will receive prompt assistance. You must always remember to complete an accident report form, if an accident happens, giving a full account of the circumstances in which the accident happened. In the event of an accident, always make out a jointly agreed report with the other person involved (you'll find one in the folder containing the vehicle's documents). If you don't, you could be held liable for the cost of repairing the damage done to the rental vehicle. Please read carefully the rental terms and any instructions provided at time of pick-up. The price of main usual parts is available at most of the main European stations, so that the small damages can immediately be paid at time of return.