dissapointing product and disgusting service

i purchased a new samsung s8 plus from vodacom on 13 September 2017.

on the 22nd of september 2017 the phone started taking 6 hours to get to full charge. on 24th september it resolved itself. on 5th october it started again. i took it into the samsung care centre at century city in cape town and was told the charger is faulty i could wait 2 to 5 working days or buy a new charger. why should i buy a charger for a phone that is still brand new? i have now waited 7 working days and have not heard anything from samsung. i have called the service centre 3 times and the service is disgusting. i get cut off, put on hold, transferred for no reason and get to listen to other peoples coversations. . i still dont have an answer. I am currently on hold for 26 minutes after someone answered my call. I can hear the lady tell someone else she does not know what to tell me. I even have a photo to prove it. my brand new phone is nothing but an expensive paperweight. Why even have a call centre? I am going to report Samsung and my issue to the national consumer council. You will be hearing from them shortly.