Some problems with my Otterbox case?

Well, I recently got a Otterbox armor series, but it was defected. When I accidentally dropped it in water, because it's suppose to be waterproof all thee water went in. I sealed everything and followed all of the instruction. My IPhone broke and I contacted the company but they said they aren't responsible for the damage of my phone. Can I go to court in this type of situation?

You sure can and can sue otterbox