Sleepwell — complaining about sleep well mattress

Address: Alwar, Rajasthan, 301018

This complaint is regarding sleep well mattress activa-supportec (U) (Np). Size 182.9× 88.9× 10.0. Product code 72×35×4
Series no. 7v094055.
This mattress have become dented from center. When you lie on it you will have a feeling as if you are sinking in the middle.
Moreover it has started to cause lower back pain. Since the mfg date is[protected]. Which is within the 2 yr warranty given by the store owner, kindly replace this product.