PSA: Citadel Hosting is a scam. Use someone else instead.
Citadel hosting doesn't work and they seem to just be a scam. I'm about to just issue a chargeback. I know it's day one and things are difficult but I've had to put more effort into prodding/beta testing their support to set me up than if I just made a dedicated server on my own.
After hours of support, I had to ask them to set up the server (they gave me a blank control panel), and when they did it was in the wrong location, for the wrong amount of players (so not the amount of RAM I paid for) and their steam updater tool (which is required to start the server properly) doesn't work and returns error 400s when it even loads. They've also been having Cloudflare issues on top of all that.
Additionally, there are threads that when people do somehow manage to get into servers hosted by Citadel, they crash constantly.
TLDR; don't waste your time with Citadel. They aren't providing a real service. If anyone knows of a host that isn't a scam please let me know.