Pimd should have pmd you the reason, but If you think the silence was unfair email support@athinkingape.com to appeal, in the email include: your username the game you play (pimd) a description of the issue/your appeal Before you appeal though, I would take a look at this thread. If you scroll down in that thread, it shows how to appeal for an unsilence.
Read your message from pimd. It states the reason of your silence. If you have further questions you can wall me. If you disagree with the silence you can email support@athinkingape.com