Apple India — iphone 8 plus water damage

Address: Bangalore, Karnataka, 560049

Hi i phone team,

I know that i phone featured with ip67 feature in i phone 8 plus which is water resistance and with stand in water in 1 meter inside/30 min.

I took the phone to imagine (I care) they mentioned its featured with ip67 but water damage generally they do the replacement of the phone there is no service and if we need to change complete motherboard we need to replace which cost for 40k which is too high for me to pay and use.

If this was the condition then why i phone using ip67?
What's the use of it why they mention iphone 8 plus is water resistance

Now my phone is 1 and half year and not under warranty/ insurance i need to know what can be done for this issue.

Thanks & regards,
Rajith