Mobildatapro 2004

I changed my mobile screen there about 1 month ago, charged me for 1100. The colour of the screen changed drastically, all colours became blue-ish. The man said this is normal with the new screens. I thought he already opened and installed a new screen & i cannot return it, so said nothing. Some parts of the screen (few pixels) were not quite working from the beginning, but again i thought no big deal.. After a month whole screen was out of order. Took it back to the shop, he said u must have dropped it , so its out of our 1 week guarantee. I asked what screen u used ? he answered: apple original. Then he offered to fix it for another 750. i said no, and took it to another store. They said this is a copy screen, worth 700 only and that is the reason for colour change. Went back to Mobil & Elektronik proffset. He said "i dont mind what other stores say, now that u have fixed your mobile elsewhere i cannot do anything for u".