I purchased an Instant water heater. After 5 mins of luke warm water it starts giving cold water ..the entire process you can get half a bucket of hot water. I contacted the local sales guy he put me on to the sales Officer from CG .. he started giving me gyan.
I asked him to replace this he was adamant and started telling me that you have to route this through the call center and so after a while, I left the issue. Still stuck with the pc of junk, not a very happy person.