Kaff Appliances India — Kaff chimney customer care & technician service

My chimney was not working so i contacted jaipur customer care no and they provide me a technician. technician came and repair our chimney and charges ₹4000 and after some days it again stopped working so i called back on technician no and customer care many times but nobody bother to respond to call. after so many efforts customer care jaipur again provided me a technician and he came and repair the chimney and charges ₹6000 and not provided any bill even though we asked it many times. again after 10 days it stopped working and now neither techinician nor customer care service is replying to our call. we are mentally pissed off of calling again and again and wasting my time on such pathentic appliances