Pureit / Hindustan Unilever — new ro bought gives problem every month

Address:

Bangalore Urban, Karnataka, 560103

Hi,

I bought a ro from sri ram enterprices. From the day i bought, immediately rom gone in 2 days. They changed. Later water started leaking, they collected 600 extra and put pressure control (Still water is leaking).
Almost daily too much vibration is happening and they told it is normal with this product. Previoulsy last 5 years i used same company ro. I never faced this. So, i went and bought same one.

Please let me know the procedure to get refund. I strongly believe they sold second hand product.

Top of that, indicator turing to red and green automatically. Service engineer told this is very common with this product.