Xiaomi Mi4I — Complaint using touch

Address:

Kollam, Kerala, 691505

I purchased a xiaomi mi4i via Flipkart. I got the phone ontime but the phone wasn't worked properly. I replaced the phone then they gave me a new phone. Now I am facing complaint on this phone also. When I sliding on the touch panel the whole display is blinking. Please resolve the problem. Please replace the phone or I need urgently my money back.