Hyundai Motor India — Servicing at Saini Hyundai workshop mominpore

Car registration no WB02AB9482
Yesterday I have returned my car from service center after incomplete servicing . We want to report that and have tried to inform them but service engineer and others misbehave to us though they have billed 11390 . At service center, they have damaged the negative terminal of the car's battery at the time of washing but they denied to rectify that for that reason car was totally stopped when returning from the service center . By the help of outsiders we are able to bring our car at home . Please do something as necessary otherwise we will forward in proper way