Eureka Forbes — high maintenance purifier sold for home use

I was forcefully sold a dr. Aquaguard classic+ water purifier in apr 2019 by sales field agent of eureka forbes (Ef) citing issues with my older classic one. After just 6 months o[censored]se, the machine stopped releasing water from the outlet! After calling technicians of ef, we were enlightened that the candle/filter of the machine counts the number of litres of water the machine processes by way of number of hours it runs. As soon as the processed quantity reaches 6000 litres, the machine stops automatically (Chip based). Imagine, in a household of 4 members, how can 6000 litres be consumed for drinking in 6 months!!
The trick is, no matter what is the speed of flow of the water from the inlet, the timer fitted in the machine decides that 6000 litres are processed.
Now the filter to be changed does not fall in the extended amc, only in the first year warranty period. The cost of this filter is rs. 2500/- and the cost of the whole machine is barely 11, 000/-
So to save this 2500/- every 6 months, i am being asked to fit a bulky booster pump next to the purifier so that the speed of water processing increases. Cost of this pump is 2500/-..

My question is why should i spend more and more money on a simple machine like a water purifier! Is this a deliberate money making strategy that company is adopting by enabling automatic chip based machines that take customers to ransom by just shutting off and insisting to change filters at high costs!