Mitashi — 1.5 ton AC

Purchased this AC from Nandhilath kochi less than 3 yr bk. Compressor warranty expires this Feb. this ac never cooled the room. I am fed up of giving n number of complaints since installation . Pathetic and arrogant response from Mitashi service person. Mr Abdul Salam in Palakkad Never responds to complaints. Can you imagine we fitted this junk product in our room for 3 yr now. Please let me know the solution of replacing the same. If you fail to respond here, I will take the pain and time to go to consumer court with all the available documents.
Also please train your service team to behave polity to customers who invested money and are waiting for its benifit for 3 yr??. I use another 2 brands of AC in my house. Electrolux and Onida. Never had complaints with them. Since you assured good service and better price, I went for your brand and now feeling cheated.