Hero Motocorp — key problem and engine hard movement

Address:

Hyderabad, Telangana, 500003

Sir,
I have purchased maestro edge in year 2016 december month. I have just out showroom after purchase scooter and try to start.
When i insert key in vehicle it shows a symbol of key and i again and again try to insert it when symbol goes it is able to start than i told to manager of sukhmani hero indore theytold me please try to start and finaly after 20- 30 attempt scooter start and management told me please come after 7 days for first service we are solve your issue but after 20months also same problem continue and after first service my scooty is getting hard movement while riding if i compare to another mastero i showed this problem to hero moto cope service center management also. But still my problem does solved can anyone do needful to my problem.
From day one i am getting this since its nearly 20 months no is solving my problem atleast any one help me.