According to my information, the water tank is actually different in size for the two versions.

You have to register the machine on the Nespresso website and write to customer support, then you will get a 100 credit on your Nespresso account.

yes, as with any other machine. Is then stored for this capsule size

Unfortunately we cannot guarantee this :(

Hello hello! No, we don't receive them.

Everything is explained here ^^ https://www.galaxus.ch/fr/s2/page/capsules-nespresso-dune-valeur-de-chf-100-offertes-pour-lachat-dune-machine-nespresso-9173