There is no guarantee that ANY of them will respond to you through Twitter. In fact, I'd be willing to bet there's a 98% chance you wouldn't get a response at all that way. The best route to take would be to email either Eddie Cue or Tim Cook directly. With that method, I'm going to guess there's a 98% chance someone on their team WILL read your email and get back to you within 48 hours.
I have done it before... and it works.