We rented a car over shabbos and were told there are no miles included for shabbos since they dont charge for shabbos. But what about motzei shabbos? Can we use it tonight? Or are we going to be charged /km??
You need to rent the car for at least 3 days in order to have enough kilometers
They can charge you if you go over the ammount they allow for a one day rental.
You can choose to pay for another day or to pay more for the extra km.