I got an iPhone 4 last October, whilst in the shop I also purchased a bumper (cost me £18 iirc) I didin't want to spend £18 but it needed some protection and I had fron+back screen protectors already.
Now bearing in mind this item was exclusive to Vodafone and contained no warning that damages like this could happen, well I found nothing on/in the packaging to believe so.
I work in a supermarket and I'm out and about fairly often, I usually wipe the phone down, but generally have no reason to take the bumper off. At the end of January I had a reason to take it off, because it had been damaged at the bottom, I just wanted to make sure the crack at the bottom wasn't serious or if it had damaged the phone. I've only got round to chasing this down now, because a few people said I should complain to Vodafone and request a repair. So here the current state of the top/side/bottom of the phone now thanks to a Gear4 Bumper.
http://www.dropbox.com/gallery/55740...ecase?h=715f39
Do I have any grounds to complain? Am I right to do so considering I never considered taking the bumper off to get any dirt out from with in?