Customer neglected and left in the dark

My phone was handed in at Samsung Tyger Valley for repairs and sent to Century City on 9 February. The Reference is: TV332. Since then I've made numerous trips back to the store. On 23 Feb I was informed it will take about a week and I will be contacted. On 12 March I was informed I can expect to be contacted by the Friday. On 19 March I logged a complaint on Hellopeter but the call dropped and the guy never bothered to phone me back. On 23 March (after six weeks, four trips and lots of false promises) I demanded my phone and money back. I was assured I can collect my phone on the Monday. On Monday 26 March, my phone was not there. I was informed my phone will be delivered to me on Tuesday. It didn't happen, again. So should I make another 40km trip to the store find out WHY not? Samsung... there is something seriously wrong with your service. This is the worst service experience I have ever had and there's just no end to it. You have forced me to fight and beg and complain, for nothing. When I handed my phone to Samsung's care, I trusted in your professional service. But you have shown absolutely no care or concern in the world. You didn't even make an effort to follow up with me despite many promises. You walk over me like I am your doormat. I wish I could speak to the manager who oversees the repairs division to tell me WHY? Why are you putting me through this? How can you do business this way? You spend millions to create awesome products and market your brand, but then you force people like myself to tell the world on social media the reality of the service experience (or lack of service) that we get on ground level. So this is the second complaint on Hellopeter; where's the guy who was supposed to deal with the first one???? Do you want me to take my complaint to a bigger audience? Is that what it will take to get service or at least my phone back? Please answer me on WHY I have been treated thus? WHY did you not consider me worthy of your time and effort? And WHERE is my phone?