Motorola - Refusal to provide warranty services

I have been denied warranty services for the abovementioneddevice. The issue here being that the screen of this phone has popped outpartially, what is to be noted here is that screen has come out only partially andnot fully and when the same was taken to the service center the screen was fullyfunctional and without any damages.
The service to me is being denied based ona flimsy reason stating that since the paint on your phone is chipped at variousplaces hence the product is damaged and hence only paid repair can be carriedout.
I would like to state here that the paint is chipped at various places ofcontact on the phone due to poor manufacturing practices and that the paint onthe back is entirely firm. Also I would like to state that the paint has nocorrelation with poor sticking of the screen. -Had I mishandled the phone thescreen would have been cracked or damaged and not come out. -Had Imishandled the phone the paint would have been chipped out uniformly and notat only the contact points.
The Service center not only denied me warrantyservices but also misbehaved as to have been preconceived to reject anywarranty repair claim coming their way. Post the service center checking myphone the phone screen is also not working as it should be.
The company notonly rejected my claim but also breached the trust I hade placed in them bybuying the phone, the company connected two very different issues to arrive atthis claim. The lackadaisical approach can also be seen from the fact that thecompany asked me to pay for pasting back my screen and further informed methat even after paying for such a repair there is no guarantee that it (the screen)will hold.
Having exhausted all my options, I request you to kindly help me withmy issue.
Regards,
Harsh