sevitrol — didn't order this product

I NEVER HEARD OF THIS COMPANY. THEY SENT ME A BOTTLE OF SIVITROL, I HAVE NO IDEA WHAT THIS IS.I HAVE TRIED TO CALL THEM. BUT I NEVER CAN GET THREW TO THEM. THEY NEVER ANSWER THE PHONE. THIS COMPANY IS A FRAUD, AND THEY BETTER NOT TRY TO BILL ME, FOR JUNK. FRAUD FRAUD FRAUD