Wow, I just checked the price of an upcoming 10 day rental in December for a Polestar, and it's gone from £275 for the "pay at location" reservation I made a week ago, to £668!

Shame because I was going to change it to a prepaid as I have a current Amex £50 rebate on a £250 rental, and the prepaid was just a few pence over that which was perfect, and would have meant £20 a day for the Polestar at peak Christmas-New Year period which is a steal. But hey, considering what they're quoting now, I'm not complaining...