Kurl-On — spinekare

Address:

3rd Floor, Manipal Centre, 47, Dickenson Road, 3rd Floor, North Block, Bengaluru, Karnataka 560042, 400097

I have purchased Kurlon Spinekare mattres on 25/10/2016 from PUNAY mattress and furnishing of approx 30k. From the very first year the mattress starts compressing on the either side. Now the current position is that it start threading out on the edges. Now after complaining they visited and said that we have to purchase same company of mattress and they also don't refund the amount and saith that we only get an rebate of 40% but as per Kurlon warranty Tnc the warranty i get is 60% refund and they are forcing to buy the same mattress.
please help me out in solving this problem