Sony India — Sony Xperia Z2 Mobile water damaged

Address:

Mumbai City, Maharashtra

I have purchased my Sony Xperia™ Z2 on 2nd July, 2014, and after 2 and half months I have used my Sony Xperia™ Z2 in swiming pool water less than 30cm deep and for less than 15 minutes.It was working very well until the battery charged. After 5 - 6 hours I tried to charge my phone but it was not charging after battery got over my phone got switched of and still it is dead. Now it is only showing charging red light sometimes but not getting charged. I kept my phone in the rice with opened slots for two days but still my phone is dead. Finally I went to the Sony service center they have checked my phone and said my phone is water damaged the warranty is void.It is not my fault, Sony says Sony Xperia™ Z2 "The world’s best camera and camcorder in a waterproof smart phone*" Then I want to know how my phone got water inside. Your service center decides themselves that my phone has water inside and now warranty will be void.Please help me what to do?