Sony telecommunication goods faulty

Based on experience with a Sony Z3 phone and now another experience with the Sony device (watch) that goes with this cell phone and my conversation with Vodacom whom have confirmed that products received from Sony had been faulty. Why is Sony supplying products that are defective in the market? and why is it so hard to get assistance from Sony to rectify the problem? Perhaps Sony is not as good a brand as i was lead to believe. perhaps Sony will be able to inform me as to the way forward as my experience with sony products have been anything but pleasant. SONY YOUR URGENT ASSISTANCE WILL BE APPRECIATED, AS I AHEV ALRADY WAITING FOR OVER 10 WEEKS TO RECEIVE THIS DEVICE AND THE DEVICE IS NON-OPERATIONAL WHICH IS NOW ONLY 3 DAYS OLD. PLEASE HELP