Battery Dead problems of the 2015 Mercedes Benz C300

On 11/1/14 I filed a complaint about safety issues with my new 2015 mercedes, C300 (odi # 10664470) that pertained to debris entering the engine compartment from the top, near the windshield, and other issues with the command "radio", "touch pad" & keyless entry locking systems. I understand these systems are not proprietary to mercedes and so are in many other luxury models. I've rec'd no feedback from the daimler corp or from your office. Now a new issue developed where the keyless go wouldn't allow me to either enter the vehicle or sound the "panic" alarm. The company doesn't know how or why this could happen or how to fix it. I'm especially concerned with the inability to use the panic button, which is there in case of a criminal or medical emergency. What a surprise when you go for it and it doesn't work. There is no back up should the battery fail to work. I believe this is another safety issue with this car and would appreciate it if your office would take me seriously and contact me before someone is injured or killed. . Thank you. .