Someones hacking into my itunes account. HELP!

I have a big problem. someones hacking into my account. I DONT EVEN HAVE THE SONGS! It says i bought Brothers (deluxe version), elephant, treats, white blood cells, and a song called Camp. And the worst part is that i dont have my money left my friend gave me. Can a admin please help me! i need someone to like delete all that crap so i can get my money back pleaseeee. i mean, i had 50 dollers and now i have 5 cent.