Xiaomi India — facing issue at mi a1 (within 10 days!!!!!)

Address:

Thane, Maharashtra, 401202

This is SURAJ B. SANTRA, I had bought Xiaomi Mi A1 on 21/01/2018 and recieved at 23/01/2018. Today on 03/02/2018 the Device is totally dead either not getting switch off or not getting switch on . I was Recieving calls before but after chatting with Xiaomi Chat support i had pressed the power button for 15 seconds while charging as they guided me, and now im not getting any call anymore.
Im Really Upset with this Brand i had not used more than 10 days also and Visited once service centre for software issue and Now today the whole system is dead. Today is Saturday 9.00 p.m. im stucked Because tomorrow will be Sunday !!!