Two things to consider/check: do you have a screen protector on the phone and
is it possibly not applied correctly or loose? Second, is your iPhone screen
clean? I have seen dirty screens cause all sorts of weird behaviour.
-Original Message-
From: viphone@googlegroups.com On Behalf
Yes you should be covered.
Yes, it is best to take it to an Apple Store for this.
It could be a hardware issue too. Be sure to have backed up your phone before
taking it in as there is a good chance they will reinstall the iOS.
Richard, USA.
“What we think or what we know or what we believe