so called waterproof Sony Z3

I upgraded on the 2nd of March 2015 on a Monday, took the Sony Experia Z3. Phone broke on the same day I got it, from water damage. Sony and Vodacom both guarantee a waterproof phone, and that under water photos can be taken, only if ports are sealed. So as client, that's paying a lot of money for this 'waterproof phone\ its my right to test if the phone is waterproof. Checked my ports