Royal Enfield — poor service of my bike bullet 350

Address:	New Delhi, Delhi, 110039
Website:	royalenfield.com

I am Rahul Dabas.
Bike No. DL 11 SS 2000
Bike CH No.- ME3U3K5C0HH380719
Bike Engine No.- U3K5C0HH380719
I bought my Bike i.e Bullet 350 on 31 August 2017 from SONI AUTOMOBILES at Budh Vihar, Delhi.
The bike has travelled 14400 km.I took my bike to my nearest service centre on 16 Jul 2018 and they changed the chain set of my bike.Though they changed the chain set, all of the nut were kept loose and on accelerating the bike does not remain stable.I went to the same service centre the following days i.e on 16, 17 and 18 July 2018 regarding my concern and no solution was found to the problem.I am very unsatisfied with the services.Kindly look into my matter.
Name-Rahul Dabas
Contact No.- [protected], [protected]