heromotorcorp - manufacture defect

I have purchased new scooty **-**-**** ,while riding the scooty i am facing riding issues(means sensor failure ,and pulling back without pressing breaks )for that when i visited  the showroom  they have not responded properly, for that reason i have raised the couple of  complaints , but the sub dealer /dealer they are not considering that was  professional work ,they are treating that was personal emotion,  and forcing me to put Sign in whitepaper without doing service ,if i dont put the sign they  are telling they  won't return my bike. they are conveying like this ,they are telling you don't know how to ride the bike all this abuse words they   started using .
my bike is currently in showroom only ,this is not the correct way to holding my bike in showroom if i don't put the sign they wont return bike this is what they are telling.

I need reimburse from heromotorcorp