Read the following and decide whether you want to risk using CarJet.
I booked a car via CarJet to pick-up at Schiphol airport from GoldCar outside of the airport (Aug-2020). The CarJet voucher included what appeared as sufficient information on how to contact GoldCar representative and how to pick-up the car.
I followed the instructions but found no GoldCar representative and could not reach them in phone number included in voucher. Being late, after one hour of not having been able to contact GoldCar, I rented another car. While picking-up the new car, with no time to spare, I have been contacted by a GoldCar representative. I explained that under the circumstances I had to cancel the booking. They understood and apologized but said that I should contact CarJet for the cancelation and the refund.
Later in the evening I logged in CarJet site and asked for a cancellation explaining the circumstances. CarJet replied with a no-reply “dry” email saying that they accept the cancellation but that there will be no refund after the hire period has already started.
Following that I have sent several messages to CarJet and even contacted GoldCar. GoldCar have been understanding (I could talk to a person) but would direct me to CarJet for any refund.
Bottom-line: CarJet pocketed the money for a service that has never actually been provided, GoldCar claim they got nothing and where happy to cancel. Worst of all it is impossible to contact in a meaningful way CarJet. There is just no after-sales customer service.