Eureka Forbes — Complaining about dr.aquaguard water purifier

I have purchased dr.aquagaurd purifier in July 20. I have raised complaint about non functioning of machine on 21 jun2021with complaint no.[protected].this is 5th time in the last 6months I had faced this problem. Technician attending replacing some spare charging 1500to 2000 rupees, relief for 20 days again same old story. I want permanent solution for this, if possible replace piece with another model