Set the Content Inset like this in your UITextView
youtextView.contentInset = UIEdgeInsetsMake(-7.0,0.0,0,0.0);
Adjust the Top value the way you want. this shoud fix your problem.
EDIT:
If you’re having issues with iOS7 or above, try using…
[yourTextView setContentOffset: CGPointMake(x,y) animated:BOOL];