I rented a car through Cardelmar with Avis in Gran Canaria, and unfortunately it was damaged in a car park when we were not present. Although it suffered only a minor scratch Avis billed me for €443 as soon as I brought it back, even though this was only an "estimate".
Fortunately I had taken full insurance from Cardelmar, and their online claims and settlement service was excellent resulting in a refund befiore my credit card payment for the damage was due. Cardelmar was friendly and helpful on the phone, and agreed to receive files (photographs of documents) by email when they could not be uploaded.
I would thoroughly recommend Cardelmar and will happily continue to use them. But as for Avis -- their "estimate" was a cynical revenue collection exercise that brings their industry into disrepute!
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