Sometimes they offer some Kulanz Punkte as a sort of compensation, depends on who you get. All the car rental companies are getting overall pretty bad at awarding miles and points, somehow omitting or forgetting to award them. It's quite a minefield for points collectors to negotiate, even experienced ones like us. I equally had no idea that the PC code was so important, I thought just selecting your loyalty programme and entering your number would suffice. Like it did in the old days. And even that doesn't guarantee that the points will be awarded.