Maybe if head admins got no time to unban, but they want to... Send mail, skype or admins who is online and can deal with that, but it is all under Head admin signature, so just save chat to later if any complains mayde by some player or other admin, just show that head admins ask you to Unban "player" cos he is wrongly banned and need quick unban. There is much more way how to do that to avoid later any complains. And if I play from freinds PC, but then got Ip ban, we got the same IP with player matyl[RuS] he is my bro and Searcher[RuS], then if he got banned, I will need post unban request?

Bit dodgy system. Anyway, I think, that Ezza if you got no time or you not at home, but you decide to unban, past that to any online admin who know how to deal with unban... Just need make sure you ask him to unban and there is evidence. Maybe am wrong, but that is my opinion just in this case. So r4h just helped you, he not brake any rules, because not any admins I see now do unban, just this one, but after you tell that you will do.
regards AlexRuS