defective sofa set

Your Location/city: ramgarh cantt.ph no 9835533907

Name of the product/service/company:: akansha store,ramgarh cantt.ph no 9835343121

I have purchased a sofa set last year on 15-8-08 @ 35000/- at the time of selling the shopkeeper mr B.K.Panday has told me that if any problems come before you we will give u life time serviece.But after six months the wood of sofaset is breakig and i consulted him for replacing or changing the defetive part of the sofa then the refused to do so.he told me he has maintained a compalin when the supplier will send the defective part of sofa then they will replace it.now more then six months is gone but there is no response come.please help us.