[Resolved]  Symphony Limited — symphony sumo jr. cooler is not working

I have purchased a cooler (Company: symphony; model: sumo junior; serial no.[protected] from a shop named pradeep engineering works, dr. Rajendra pd. Road, bhagalpur on 02.05.2019. After two (02) months o[censored]se, cooler is not running. I have registered a complaint about it to symphony customer service on 20.07.2019 (Complain no. Bg[protected], secret code 390). I have got a call from the symphony technician from bhagalpur on 20.07.2019 for rectifying the issues. But they did not come to resolve the problem. Next day technician again made a call to me but unfortunately i was not on home that time. I asked him to come to my home at around 5:00 pm. But again they were not came to rectify the issue. I again registered the complaint (Complain no. Bg[protected], secret code 550) on 25.07.2019. Next day, i again call the customer care, they provided me mobile numbers ([protected] and [protected]) of technician of bhagalpur to rectify the problem of my cooler. I have make calls on these numbers, he has taken necessary information from me, but they do not come to me. On 01-08-19, i have got a call from the mobile number [protected] (Symphony customer care) to rectify the problem but again they did not came. They are very stubborn and non-responsive in their behavior. I am very disappointed with the service of this company symphony limited.
I will look forward to your reply and resolution of my problem or else seek third-party assistance.