I want a new phone

Dear vodacom. At this point in time I am beyond disgusted by your service. Since receiving my phone last May it has been ino for service at least 3 or 4 times and has needed to go in much more. I've taken my phone to Samsung and ive also given in my phone to Vodacom. 3 full battery replacements and motherboard changes later, my phone still just randomly switches off and won't come on until the next day when the battery has died and must be fully charged again. Now either this means that the phone is absolutely **** or that vodacom does not know how to provide anew effective service. Just imagine, one service had to be done I think the first month that I received the phone. I also bought a tempered glass screen cover which was supposedly 5x stronger than the normal screen but even that cracked in the first month. For this I was offered a 50% refund, of which R30 was still missing from it. Now my phone is giving me troubles again, should I just bin it seeing as it will have the same effect as me sending it in for service again? Not forgetting that everytime you service my phone,it gets completely wiped which is of great inconvenience to me. Please advise because in all fairness I think I am more than justified to receive a new phone and not have to go through another useless service again.