Hi, I am trying run a free Internet Hotspot for my neighbourhood. I only want to give a free account for any one MAC address. There is a guy who has asked to 9 free accounts. How do I block him out automatically with out the need to manually remove his acounts everytime this MAC shows up in winbox active users? I just give anyone an account so if he asked me through emails, I didn't know it was him and would give him another account.