I'm sorry for the bad experience you made so far.
Unfortunately it is not always an issue on Nitrado side, but also on the developer of the game itself or the Server List of them.
On ARK for example, the list is not able to show all the Servers out there due to the high amount of servers out there.
I can only guess that it is the same issue here, since my server for example can be found without any issue at all.
But i know that the developers and technicians of Nitrado are already aware of that and will take care of it as soon as possible.
The also might get in contact with Funcom as well.
Kindly ask you for a bit of patience.