WHERE IS SAMSUNG? Hello, anybody there??

It is IMPOSSIBLE to get hold of SAMSUNG SOUTH AFRICA. All numbers listed on their website do not work. YOu cannot email them via normal channels, you have to do so via their website, and you get no response. The last resort is FACEBOOK MESSENGER. You also do not get any help there. It has been 7 days since my complaint, and no response. No way of getting hold of them. My phone is still under a 2 year warranty, and it's not charging. It is not the CHARGER it is the phone. I want a rep from SAMSUNG to come and see me and fix the problem, or I want a new phone.