Poor service, Lies and passing the buck

My Galaxy S5 Mobile became faulty after 1 year of use. The phone is under warranty I referred to TTS Mobile in Mill park Port Elizabeth. On 25 August 2015 after booking in the phone(***) I was informed it would take roughly 2 weeks to repair. I had to contact them myself because they did not have the decency to give me a update. They were still waiting for parts! I was horrified to hear this. in any case I left for another week and after went to the shop again where they spun the same sad story of waiting for parts!! I had enough because my work was suffering without a phone. I wanted the phone back now! Molly of TTS attended to me next and then made the mistake and told me the S5 and its parts had been discontinued ages ago. To calm me down the promised me a new S6. but would take 2 weeks. this didn't sit well with me as the delay tactics was very unprofessional. Then 2 weeks passed still no Phone. The Person who made excuses this time was Emma Ellis. now telling me waiting for a 2nd approval!!! To date I have now been told the hold up is Rochelle from Samsung head office. With exception of S4 I have had all of the S models. this might be my last after such poor service.