Necesito que algun gm o adm del juego me contacte NO SE POR QUE. Se me borraron 300 diamantes del juego....

Hi and welcome to forum :)

you need to send a support ticket about this , this is how
https://forums.socialpointgames.com/topic/30/how-to-report-game-problems-to-support

propably a wrong click , ask them to take whatever you bought and refund you