Apple Iphone logic board faulty

I bought apple iPhone XR last year online and after around 13 months the phone has undergone problem now (unfortunately after expiry of one year warranty period). The phone is not getting on and is permanently off. I visited the iphone service center and after paying Rs.1500 for the diagnosis, it has been intimated to me that the Main Logic Board is faulty. The guys from the iphone service center have stated that the device can be replaced only if it is under warranty only or at exchange price. So, in nutshell, there is no solution available. That is absolutely pathetic. What should I do now? Moreover, why such boards are designed if they can't be rectified. I won't recommend any body in my circles, to buy apple iphone from now onwards. Such a tech giant company has no resolution for this problem. It would be sheer wastage of money if such hardware issues keep on coming. Absolutely distressed.