Hi OP, look at it from the positive side - you messed up on your character creation - SE has no obligation whatsoever to fix it for you. However, so far they have not rejected your request. They are probably taking so long because it is not a usual request, and certainly one that is out of policy.

Another thing that might help: there's a lot of things that you cannot influence in life. There is no point to stress yourself out over something you have no control. Go do something else and who knows when you least expect it you might get a pleasant surprise in your inbox.