Sujata — fraud service

Address: 560099

I had a service done on 26th dec, where the person charged me 5000. After which the water was not very good in taste. The tech said flush out this water 2 or 3 times the taste would change, but in the mean time u can still drink this water. We used it, the way it is
However till han 10th the water taste did not change. So v call the 1860 # for reservice... Fron than till now i have called 6 to 7 tes, they promise to send a tech, but no luck... Not sure how to proceed