IFix Ibreak

Took in my iphone with a broken screen! The consultant and i went through a thorough check if it was still working with the broken screen and all was ok! Got the phone back, after paying for a brand nee screen and now it does not work. They say, it got damaged more when they opened it! Really? Now they say its irepairable? Ive been using apple for the past 6 years! This is the first time m hearing of irrepairable!! Social media is a very powerful tool! And i dont want to use it just yet!!!