Blue Star India — ac cooling and noise issue

Address:	New Delhi, Delhi, 110064
Website:	Blue Star ac

I bought blue star 1ton window ac 3yrs ago but few weeks ago my ac not doing cooling properly so i called up customer service and they said that warranty is over so technician will come and charge 500 rs as visiting charges and they will check ur ac.so he came to my place and he said there is gass issue for he charged 2500 rs for gass and 300 rs for ac service.for one they my ac worked properly but after next night it star doing vry loud noise.so i called up again Blue star technician came and he said that noise issue not because of ac its because of voltage.ilI don't know y it having so called voltage issue with my ac.on top of that my ac stop cooling again. Vry bad service and worst product.