Samsung Battery Explodes - Chapter X - No Service

My saga with Vodacom continues. My previous report and initial submission of the handset to the repair centre on 11/11/2015 as basis. I received a call from Vodacom Customer Care enquiring whether my problem has been resolved on 11/02/2016 after posting my complaint on this forum. I informed the operator (Moddy) that nothing happened since my post. She informed me that the case was escalated to Vodacom's advanced repair centre (this was done 3 x times previously??) Every time I received the same feedback = No battery damage and the handset has been sent back unrepaired because I did not except the quote!!!!! The handset was issued 09/04/2015 and 6 months later the battery overheats, pops and cracks the whole screen? Why should I pay to replace any item if the device was faulty? The unrepaired handset is not even in my possession and I requested for Vodacom to courier it back to me as I am not in Pretoria where I handed it in during a visit there. I have run out of options and cannot believe that Vodacom is so ******** of my problem and should investigate the initial repair centre where the handset was initially sent - refer to previous posts. What am I to do?