I've recently purchased a 2018 A4, and registered on my.Audi.com. The map update section of my.Audi.com says the quota of free updates for my car has been reached, but it will still allow me to download the latest map version 2020/2021 (current version on my car is 2017). So I'm confused why I'm still able to download the latest version when the quota for my car has been reached. Or is the free quota referring to free updates performed at the dealership?