False Advertising!!!

I bought my son a Doogee S55 rugged phone for R3200, the phone gave me problems within the first few months. I took it back and I was then given a new one after many phone calls. The new one I received on some time in June. The person that sold me the phone said it was waterproof and even when I looked on the Internet it said water and dust proof. The my son accidently let the phone fall in the bath. The screen went off and I took the phone in for repairs in Nov 2020 and when I received the phone back late in December 2020 they said the phone is water damaged. i asked the consultant how can a water proof phone be water damaged and he said the repair lady said the phone is water resistant and not water proof? This is utterly false advertising!! Poor Poor service, they made me buy this phone now they cant even fix the screen after they told me that the phone is waterproof.!! I want this phone fixed or another phone for that value!!!!