Sony Shirks Responsibility

Early in April 2015 I upgraded my Vodacom contract and handset to a Sony Xperia Z3 Compact. Within 3 weeks I realized that the phone is faulty. Sony online, advised me to do a software \fix". This did not work. I contacted Vodacom and they told me to send phone for repair. I took phone to Umhlanga branch. 10 Days later phone was returned to me"