Xiaomi India — Mi max not working , no response from madgaon service center

Mi max not working i have purchased it two month back
its being closed automatically
i have given it to madgaon service center 5 days back
yet no response from service center
they sameless pepole even not receiving the calls so that i could know how much time it will take
very worst service
no any help
even not telling when it will be in working
very bad mobile and bad customer service
under warranty period