Airtel — argument with customer without resolving the issue

Address:

New Delhi, Delhi, 110015

Hi,
I am writing in connection with irrational behaviour of airtel engineer. I called airtel customer to fix my airtel broadband issue. Airtel engineer visited my house and told i am coming in 10 mins, i waited approx 1 hr but he did not come again. An engineer named hament with mobile number [protected] visited my house next day morning but he did not resolve the problem but he argued with me. He told me to not complain or to not call on customer care but to call on his personal number regarding any issue. He did not give approx time and went without fixing issue. Actually i am sick of network and speed problem and arguing behaviour of some airtel engineer.