Vespa — I'm complaining about the servicing of vehicle

Address:

Vespa showroom, NTR Circle, Vijayawada, Andhra Pradesh

I have given for servicing every two months and got a repair of sound in engine, I have given for repair, it's not even three months since I have given for repair there is a sound again in the engine. It has been just loss of money. My vehicle is a complete new vehicle, it's not even been 1 yr since I have purchased but yet I'm facing many problems due to poor servicing and their negligence. I really need a serious action to be taken on them.