Apple India — Product replacement still not available after one month of submission

Address: Gurgaon, Haryana, 122001

My apple phone charger developed a fault and it was within warranty so i tried to replace it with the new one from b2x service center but it has been almost three weeks and they tried to exchange it with American standard charger when i escalated the issue they haven't been able to resolve it and they always say we have escalated the issue and no update is given to me every time i call