Worst service ever!!!!

I took in my Samsung S7 on 7 November 2017 for a mere screen repair. On 15 November 2017 I visited the Centre as all calls were not being answered. The store manager;Zeldean was not helpful at all! I explained to her that I was travelling to Swaziland and that I needed a smartphone but instead Zeldean showed me the highway, saying that I was free to take my phone elsewhere thus forfeiting my benefit of free screen repair within the 1st year. Three weeks down the line, she still does not have the screen for my phone and no one is telling me what is happening!!!!