I purchased a remote control aircraft P51 mustang, remote transmitter and receiver and battery charger three weeks ago. Built the aircraft and find that the radio system will not function. I have sebmitted four Emails regarding the problem, Joined there chat forum as requested and still no answer. This company chooses to completely ignore me. All I require is a replacement radio system. I CANT send back a five foot airplane. Im 80 years old and feel realy lost. madmax2