As a platinum member booked a week car rental through priceline 3 months before my vacation
Paid in full advance and additional collision insurance
On arrival in malpensa car rental europcar desk, they said cars where overbooked and my usa drivers license was not accepted
They canceled my reservation on the spot and told me to go away, very rude people.
So no rental car and big part of vacation with 4 people change and had to changed other airb&b reservations, no cars available anywhere or at $2000/week, so we did take the train for the rest of the week. Not what we had planned.
When I reported this to priceline they said, all bookings are non refundable, regardless who canceled, you have to call a nr for complaints.
So I better read my bookings from priceline better
Recommendation: dont book rental cars or any reservation through priceline , dont pay in advance, always pay later , (they can not keep your money) , take insurance when you rent the car !