Originally Posted by Concerto

If I may say so, I still believe that any slight change to the reservation somehow kicks out the promotion. That includes such things, such as I did this Summer, as adding an extra driver, putting in the wrong station for car return, and forgetting to put the correct times in and leaving the pickup and dropoff as 09h00. Adding a day or buying an upgrade will kick it out too, I believe. I rigidly paid attention to this last year, and had very few problems (just the 3rd rental which was quickly sorted out). This year, I made quite a few mistakes and changes.