Hello, I have a problem with the display. Almost the entire screen is black there are only 2 places at the top of the phone in the corners where there is something visible. However, touch probably works full screen because I can answer the phone. Is this display to be replaced? How much would it cost and where should it be best done (salon or some repair place etc.). And one more thing because actually I'm not sure if it was my fault the phone was lying in the bag someone could step on it or crush it but not in 100% so is there any sense to make complaints or rather better fix it?