Sony India — Sony Xperia XA mobile

Address:

Meerut, Uttar Pradesh, 250002

I buy this phone on sunday 18th june 2017 and i was facing hanging problem from next day onwards now is just 23rd june 2017 how can i expect to use this phone for a month, everything was getting open by it owns without clicking.
When i try to get it power of it was not showing that option as well. It was blinking with notiifcation while i am attending call. It was worst experience with sony.