Sony India — still repeating my phone issue

Address:

Salem, Tamil Nadu, 637104

Dear sir, i bought one new xperia x dual cost as 25000. But that mobile has frequent issue. I am visited and submitted my mobile to sony authorized service centre, they are resolved only temporarily but my problem has not fixed permanently. So i sent somany mails to Sony but they are not responding my emails. My mobile cost is too high so i can't accept this issue. For your information am already complianted about this in consumer complaints board but there is no response from sony. I hope this time your team surely address this issue and make to resolve my issue...