Yamaha Motor India — Left side plastic body detached from its main parts

Sir I bought Yamaha FZs V3 fro sk motors gwalior.Within 6 days left side plastic body (having FZs logo on it)got detached from its main parts .i contacted showroom sk motors they dismantle all parts but couldn't not set that..they told it's because of wire coming from wrong side inside handle. it is because of technician fault they told .but they can't able to fix it .