National - Rental Credits in Germany

I think the answer in No, but will I get rental credits for rentals in MUC or NUE? I have not used National in Germany in awhile, but would like to build up a couple more free days. Our corporate rate does not allow FF miles as there is a small fee, but I do get the credits domestically.

I think the answer in No, but will I get rental credits for rentals in MUC or NUE? I have not used National in Germany in awhile, but would like to build up a couple more free days. Our corporate rate does not allow FF miles as there is a small fee, but I do get the credits domestically.
I don't know about Germany specifically, but I rented from National in Spain 6 times last year. To get your credit you must make a copy of your rental agreement/invoice and mail to National. I usually make PDF copies and email them in. You will get your credit in about 4 weeks.