Toyota — Not replacing defect piece on warranty period

I think this is the 10 th time iam forwarding a complaint to reputed company and toyota people are just fooling me by putting my vehicle on Toyota service centre and giving me back by making it ready for limited period of time. I had forwarded these complaint in the warranty period itself and they are not responsible to make it ready.My car Etios liva (reg no - KA 04 MT 5333) facing an issue on left side glass and forwarding complaint on that, you people are just fooling me by fixing it fir temporary, This will be last complaint which I will forward to Toyota, I wait till these much of time because I trust Toyota, So please make it ready as soon as possible