Bharat Sanchar Nigam [BSNL] — Not giving a customer support

I have installed BSNL broadband in January in starting they claim very good aspects of thier plans and broadband then next week trouble us start and today till now every alternative days their broadband not working nor Internet and 3 days before continuously i try to contact them and file a complaint and i call them they did not answered, so i call [protected] they also not answering one time they picked up i speak abou my problems regarding thier broadband and i called to register a complaint and then they cut the call. Disgusting after service of BSNL broadband please help every month on a same date i paid the bill on time with this kind of service, i'm very upset.