That's exactly what I told them
Seems to be common that the limbs on the D350 destroy themselves.
Here is a thread from archerytalk but there are plenty more if you google it.
http://www.archerytalk.com/vb/showthread.php?t=2515506&s=5adb1df3fe8603c947732b5aaf8f1b7a
D350 was a flagship bow, they should offer you a flagship in return