Bad client service

I went to Huawei Menlyn to replace my screen. The lady who assisted me informed me that they dont have the screen in the store they will order one for me. I asked that lady to give me a call when they receive the screen so I can make time and come. She then explained that she deal with many clients so she wont be able to call, I should atleast call after 3 days to check if they have received the order. I called on Wednesday,they confirmed that they received the screen,I then told the lady that I will come the next day to get it replaced. I went to the store,around 14h00 i was there,explained to the lady who checked up on us that I am here to replace my screen. And also mentioned that i called yesterday, she said i should queue and the consultant will help me. When its my turn to get assistance,the consultant told me that the technician said its late,they close at 4,and its 15h00 so they wont be able to assist,i should come back the next day. I explained to the consultant that I am going home tomorrow so I wont be around,she asked me to wait so she can talk to the technician. The technician was just sitting there doing nothing but he still refused to fix my phone. So Why do you choose certain stores to repair phones? The nearest store that I can go to is in Johannesburg except the one in Menlyn as i reside in PTA. And the treatment that i received there does not allow me to return to that store. How do i get my screen fixed without going to Johannesburg as its far and i work mon-sat? I am sure not going back to your Menlyn store again......