LG G3 - Factory Defect

I received my LG G3 phone in September 2014. Just 6 months later, March 2015, I discovered the crack through the microphone of my device. It's a known fact that this is a factory defect. I initially contacted LG via email at the beginning of March regarding this and I was told to contact my network provider. After contacting my network provider (Virgin Mobile), they said that they have not received any directive from LG about the factory defect and cannot help me with this.<br> <br> <br> I thereafter contacted LG about it, notified them about my network providers response and asked about what can be done to move forward with this issue. I haven't received any assistance since then after numerous attempts of contacting them. All that has been said is that they will escalate the matter further and 5 months down the line there has been no help or response.<br> <br> <br> I am really disappointed as I have been extremely patient and I don't appreciate being ignored by LG either. In other countries LG has dealt with this issue so why not in South Africa?<br> <br> <br> I would appreciate help