XZ1C Design Flaw

[OzM8]

Just started using a XZ1C and there's a lot to like about this phone.  But one glaring disappointment is the poor quality speaker and microphone.  I've come from a Xiaomi Mi6 and the in-call sound quality is significantly less with the Sony.  Also, people I call comment that the sound of my voice is less clear than it was with the previous phone.

Is there any way I can send a message to the design team that I'm happy to pay more if it means I can have a premium quality speaker and microphone?

[Uliwooly]

@OzM8

This is a global user based forum, you can contact Sony directly >>> Local support

Just wondering does your phone has a protective case, film and/or glass? 

[OzM8]

@  uliwooly

No there is no case or film or glass on the phone.  Nothing at all.

I imagine that all phones of this model will have the same speaker and microphone.  So I thought that would be a global issue.  I really just wanted to send a message to the design team.  How would local support be able to assist?

[OzM8]

Contacting Sony directly didn't help.  I only want to tell the design team that they almost have what for me would be a perfect phone.  Improve the ear speaker and microphone and torch/flash and it is a perfect phone.  Maybe someone from Sony might read this.