Hero Motocorp — Regarding the service

Address:

New Delhi, Delhi, 110059

Singla automobiles service (Mayapuri industrial area)
I have hero passion xpro, i am visted to regarding my bike service 3 times, but sttil there is no time value for customer, they are take 5hr for 1 bike service & service center manager is very bad behavior, also bike servicing is very bad, personally i don't like this service centre (Singla automobiles). I show three time but every time manager behavior is very bad, or no co-oprative.
When my bike 1st time service done average is 60kmpl then after 2nd service in 6 leters fule i get 189km, 31.5 kmpl. I am very disappointed. And when i came for my 3rd service they person take 5hr for normal service in weekdays (Monday). There is no sttaf for working. Such a very bad experience in this service center (Singla automobiles).
When i say complain service manager then manager say, you do.. I have no problem.
Finally i am very disappointed from this service center (Singla automobiles).