if I get a VPS

I'm trying to point my domain's NS to Appwrite's ones, but OVH returns the following error: `You need to register ns1.appwrite.zone in order to associate this d...

How can I get in contact with Appwrite? I cancelled my subscription but they still charged me after my cancelation.

I understand that they cannot change, but what about where they are created? Is that supposed to be able to be changed when creating a project?