Realm is full

[Saneko-ragnaros (Saneko)]

They are not refusing any players to play, you can for example still play on BfA with the gametime in question, play on another realm. Queueing up for a realm is entirely normal, everyone does it - for the stability of the realm.

As for “ignoring the problem”:

They’ve already addressed this before the start of the Classic Launch:
https://eu.forums.blizzard.com/en/wow/t/overcrowded-realm-update/70777/1

Realm Queues & Maximum capacity increased:

New Realm Population Label System

With a hotfix to WoW Classic a few moments ago, we’ve changed how the realm population labels work in order to display realm populations in a more meaningful way. How it worked before this hotfix As we explained here, the system previously calculated the population labels by comparing all realms to the most-populated realm. This could result in a very crowded realm (with a lengthy queue) showing up as “Medium”, since it was being compared to the realm that had the highest population and a pote…

Maximum Realm Capacity Increased – 28 August

With hotfixes that we are currently deploying to all WoW Classic realms, we are substantially increasing the number of players that can be simultaneously logged in and playing. We expect this to result in smaller queues for realms that have large queues, and some realms should no longer have queues at all. We will closely monitor performance and stability throughout this process. Thank you very much.

I don’t think they’re ignoring anything, I recommend you to visit the Classic Discussion forums for updates regarding anything that may happen there as Customer Support is not responsible for anything you’ve wrote here. Your topic may be moved.