POOR QUALITY SCREEN REPAIR

I handed in my iPhone 4 to get my screen repaired. When I went to fetch my phone it was flat, so I couldn't check the quality of the repair. After getting home and charging it, I noticed that the screen wasn't clear at all, parts of the casing were showing through the screen, especially on white. After taking it back, they brought out the phone but there were still spots on the screen. The technician said that I had to get a new black casing which would cost an extra R900. After demanding further explanation, it turns out that the screens they have don't have a back cover, and that the silver casing shows through. He says that he will try using insulation tape to mask the back, but if that doesn't work, I have to buy a new casing. This is COMPLETE NONSENSE, they should have the right screens, not require me to get a new casing. I've had my screen fixe a number of times by iFix, and never had this issue. I'm VERY DISAPPOINTED in your service, and how you tried to charge me extra for your mistakes.