I've had iPhones since the 3 and never once had a problem nor have I ever returned one. With my iPhone 6, this is the 3rd phone I've had since I got it in December 2014. Every phone I've had the screen starts "sticking" and making an annoying clicking sound when pressed (especially in the upper right corner). I took it back a few weeks ago but this replacement phone is now out of warranty and they wouldn't do anything about it. In doing some online research, it appears this has been an issue for this particular model. Any ideas of how to get this corrected? Very disappointed in Apple's QC right now! Thanks in advance.