Mic problem

Hi there,
I'm a new customer to astros and I just received my new A40 TR for PS4. I followed the steps on the astrogaming channel to set it up. The sound is great but the mic does not work. I tried to connect the headset directly to the controller and it worked. So, there must a problem with the mix amp. This is really frustrating since this I live far away from the states and there's no easy way to fix or return it.

please help....