Kent RO — After Sales/Service Cost

Address:

Visakhapatnam

I have called the local kent representative and they have come for service.
Now, after using my Kent Sterling Star for the last 16-18 months they are already asking me to change the candles and the RO and making an exorbitant bill of Rs. 4000/-. This is very dissapointing that KENT is looting the buyers on after-sales.
I have been a long time user of Aquaguard and have never faced issues like this. KENT RO kindly consider making the after-sales also affordable for the common man.