Hero Motocorp — bike issues

Address: Pune, Maharashtra, 411004

Sir/madam
i m facing lot of problems in a bike{Maestro edge}but the dealership denied to solve the problem...they always took my bike to serive centre but the problem is still on and on... literally 6 or 7 times i left my bike in service centre but they didn't response me properly... Problem is from the 1st month now it has been 4 months they r not solving the problem nor replacing the bike...i tried to call hero motocorp customer care numbers but they are jus saying u ll get call from our seniours bt 15 day ago i didnt get any call from Hero Motocorp...
Dealership details-
Saavya Hero
Add- Nal Stop Pune-411004