Domain questions

After buying .eu domain. It is showing in processing how much time it takes and is there any formalities left? I already updated DNS records before doing payment. After buying .eu domain. It is showing in processing how much time it takes and is there any formalities left? I already updated DNS records before doing payment.

Is there anyway to get a API-token, so that one can do DNS Challenge setup for one's domains at Site.eu? I really would like to be able to make https for those things I have without having to expose them to the internet.

Hello, how to put ns1, ns2 from my hosting vps to your domain? Something is not working. Please give an example. Hello, how to put ns1, ns2 from my hosting vps to your domain? Something is not working. Please give an example.