OnePlus India — Not repairing given damage product

Hey there

I've order 2Bluetooth oneplus bass edition.. From my brother account number is [protected]... 1 Bluetooth is not working I've complained but they are not helping me they are not concerning about customers ... Two time I have sended my product to them they not solved my product and they sended me damage product n they're saying it's damage although they are ruined my product and not helping me
Now what can I do my too much time wasted oneplus company service and my 2000 money...
Help me

First time I've complained to them but they are not resolved the date is... 28/6/22

Again I've complained still they not resolved the date is 6/7/22