SONY XPERIA Z3 - NOT WATERPROOF

All the hype about the Sony Experia Z3being waterproof is nonsense. On its first use in water, it failed. Was in the water for about a minute at about 30 cm under. When taken out of water, it went off and refused to come on again. All the ports and seals where closed as per the requirements, but obviously that did not help. On sending it in to the Vodacare repair center, the feedback from Sony was that I need to pay R900 to have it fixed. Thats just crazy and ridiculous. They need to replace the phone. They gave me a sub standard product that did not do what they said it would do. From the list of complaints here, its obvious they have a huge problem. please fix up your products and dont falsely advertise. I have been a huge fan of Sony, way back from the days of Sony Ericsson. But this just leaves a bad taste. Very disappointed. The least they can do is replace the damaged phone I have.