I've tried everything with Live Track and Live Event sharing. 3 different phones, iPhone and Androd. The map and my tracking works. But on all phones there is no option for the receipient to send me a message. The "Send Message" button doesn't show up at all. Anyone figured out how to resolve this. I've had a ticket open for a week and have just received useless help, just more basic questions. I started my LTE subscription, but being able to send messages was one of the primary reasons for turning it on.