Call Audience Services at 323-850-2000 to get removed permanently from all the lists. If you don't want to be called again, don't buy tickets at the Bowl or Phil, or make sure to omit the phone number section of future orders.
They are ok and legit. It's The Hollywood Bowl... I use to avoid all those damn calls. I'm glad I was bored and decided to answer one day. The Bowl is the best place in LA for a sexy night out (minus the traffic jam afterwards). You might want to answer, and hear them out.