Broken device? They will keep it broken for you, and not for cheap!

I handed my iPhone 5 in at the Menlyn Branch where they had to replace the battery, because of the device being used for three years already and to replace my screen as the battery swollen up and pushed the screen out to the front. R1800 later I have a full functioning phone. The battery has a warranty of 3 months and the screen a lifetime warranty. 5 months later the battery doesn't perform as efficient as it did and the screen makes stripes on the screen. Obviously I cannot get a replacement on the battery but I can get one on the screen. I go to Brooklyn booking in my device, after waiting 3 days longer than what was estimated I received the device back and in a week's time I put a screen protector on. Two days after applying the screen protector the screen gives me problems and I have to get it replaced again. I raised the concern with iFix that every time I had to get a new glass screen protector because of their lack of quality products. I haven't received any feedback from them and it has been a week already. My friend also had to replace his battery and again had to return to the branch to get another battery replacement because of a "bad batch" batteries from the factory. I will not recommend doing business with this company.