Name change requests are processed daily, so if your request has not been accepted yet, it means that it has been rejected. The most likely reason for this is that the nick you've requested is already in use.
I didn't find your nick in the database, so either another of your name requests got through, or you gave us the wrong name. In any case, when you're requesting a new nick make sure it doesn't exist already, AND make sure the nick works in VC:MP (some special characters may get filtered so some nicks can't be logged in to).
