Will there be an extra charge for using a debit card to hold the rental car security deposit?
No, when you rent a car with a Debit Card there will be NO extra charge. To check which supplier accept a Debit Card, look here:
Some suppliers accept Debit Cards. The card must have a Mastercard or VISA logo and your name embossed on the front. It cannot be a pre-paid card. To view if a supplier accepts Debit Cards next to each car photo is a link entitled IMPORTANT INFORMATION, click this link to view conditions. Try a few different suppliers as they do vary.