Apple India — apple iphone xs

Address: 18/31, Second Floor, Shakti Nagar, New Delhi, Delhi, 110007

Hey i have been visiting the apple service center near me i. E iqor service center in kamlanagar for almost 4 months now. It is to no avail. I visited there within 15 days of purchasing my apple xs in may, 2019 but there server was down and till date i have visited them 8 times in total but my issues still very much exists. The salesman kunal and 2 others including there manager rohit have been making a fool out of me. They misled and misguided me into believing that my device is perfectly okay even when i kept insisting that its not. Then after pleading with them and after one big argument when i urged them to send the phone further they told me they did send it to their higher branch in bangalore but then they were too clever or in my opinion stupid to contradict their own words every time, i say so because i have all the recordings of them admitting there is an issue but then when i have been asking for the phone swap they told me the issue doesn't exist even when the product has a serious manufacturing defect and is a faulty device. Please help me in getting my defective phone replaced.