Poor Service From Samsung and CEO EMail

My S4 has been faulty since I bought it. It wont connect to PC, people cannot hear me during calls. Samsung says it is not a warranty fault and that it is for my account. The phone went to Brooklynn Repair centre who stated that they send it to Samsung, only to find out that it goes to a company in Lyttleton F...Tr..e Solutions, who claim they have repaired the fault, but did not. No repair of this nature indicated on their job card. They only replaced the cracked screen, but with a generic one and not an original. I contacted the Samsung CEO Email complaints address as indicated on the Samsung Website. All he does is send a reference number and no feedback. So much for advising to your clients to contact CEO Mail directly. Your service sucks Samsung and your devices are the biggest **** on the market. Put your money where your mouth is and come to the party.