Questions about Twitch subscription?

I got a twitch subscription today. Since this is my first subscription to Twitch, I have a few questions:

1. I also immediately got the 1-month badge. Can I keep that even if the subscription expires?

2. If I sign up for two months after the subscription has expired, do I get the 3-month badge?

3. With subscription, I can access the Minecraft server of the streamer. I've already reserved land there, where then no one can break down anything. If the subscription expires and I renew it a few months later, is the land still reserved?

Yes
Yes
Do you have to ask the streamer.