arrogant and failure to replace

I upgraded 3weeks ago. They didn't have stock of samsung galaxy note 4 screen protectors. He then fitted according to him a new screen protector tha doesn't even fit the screen, starts turning yellow and that fades. I then went back a few times and he then said that I must come back a few days later and he doesn't show up or he is out. He told me today when I saw him that he can't replace it. I am Arno van Aswegen. His son is arrogant and rude to me