Waterproof Phone

I sent my Samsung S4 Active for repairs for an overheating battery last year. I was given a new handset. Whilst said phone was in for repairs, I switched to another phone and didn't use the 'new' S4 Active after it came back until about 3 months had passed. Shortly after I started using it, it fell into water. This phone is supposed to be waterproof. From the front desk personnel to the repair personnel to the manageress Jessie at the Liberty Mall, I can't find the words to tell you how DISGUSTING your service has been. Ash was the manager who booked the phone in after the explanation as to what had happened. I made it very clear that I was not going to be paying for the repair as the phone is supposed to be WATER PROOF. Vodacom returned a dud phone to me - not my problem. Ash agreed that the phone be sent for repairs and the issue escalated. After getting a quote for R5000 today I got through to the Repair Centre at Liberty after an hour of trying. Seriously people? Then they've just off their own bat decided to cancel the repair after I said I wanted to talk to Ash who is only available apparently on Wednesday? Can somebody please sort this out????