I was flying my phantom on vacation. I was 300 feet up about 100 feet out. No big deal but i lost signal instantly. It didn't get weak like it normally does when your too far away. It just cut out. Moved my controller to try to get signal. I hear it buzzing out of the sky and into the water. What happened? Will DJI refund me as flyaway if i send my flight log? I have recording up until I lost signal.