Royal Enfield — I am complaining about wrong service and misbehaving

Address:

88, 560094

This is regarding the issue of miss firing happened in my bike month of feb'19. I given for servicing and got half resolved saying everything is fine.
Again same issue happened in month of apr'19 and given back it saying all issue resolved but not too late than now may'19 again same issue of miss firing happened and now they are telling that this is not the issue sir, such miss fire happens in all 500 cc vehicle. It won't cost issues.
All the time i paid them for their services which is more than market price. But no resolution.
Staff misbehaved when i told them that i will complain to consumer forum.
They said wherever you want to go you can.
My vehicle is still having the issue what i reported by they calling it as resolved.