dutta enterprise , manbazar, taking more price than actual mfg. price

Location/place: manbazar/purulia/wb 723131

Name of company/service: dutta enterprise

I have purchased one pump set of (crompton and grieves make) from dutta enterprise, c/o -b dutta , manbazar, park road, ph no.( dutta enterprise)-9434324617.but the pump set got damaged after one hour of running. then i have returned the pump to dutta enterprise for rectification the problem.but now after 2 months gone, till now they did not make any solution for me. also they are just harassing me. They also used to sell expired dated product many times.
they also take much price than the rated / actual levelled product price.