The problem is that, nowadays, when you actively punch/kick a bully you are in fault. I recall an episode in my high school where I kicked a bully around (not hard ,but still enough for him to feel it). Somebody saw that and reported it. Result: i get reprimanded because I used violence, even after a lengthy explanation on my part. Especially when nobody is there to back up your statement, it is very difficult to prove that you are bullied (especially if all his friends said you "overreacted" to a "one-time friendly tease")
So, my advice: first report the bullying and make sure more than one person hears the complaints. If the bullying continues, you have at least "proof" that you were bullied.