its one of three scenarios
1) plarium only bans the accounts
( but their creators manage to regain access or they are really fast creating and leveling up more accounts )
if it is true that they are fast at creating and leveling those accounts in short time then the CM's claims that the game has no cheats is false
and you know what supports the claim that they might be able to regain access its this
https://plarium.com/forum/en/stormfall-age-of-war/game-discussion/37564_oberon-protects-bot-castle-/
obviously those bots were long ago and came back after a while ( earning protection )
2) the creators of these accounts found a way to bypass plarium investigation procedures ( which i would expect )
besides really they cant put alot of effort for each and every report ( its probably just take a look and move thing ) because well there are lots of other things the devs care about such as
developing new features / implementing players feedback and stuff ,,,,,
also with millions of players the security department must be on edge all day monitoring the huge activity those players would generate Right ?? lol
3) plarium does nothing about them because well Bots are the true reason raiding still exists in this game
( the above is not just for master but also for bots in general )