Flipkart — Fake product received and telling that we will not take complain

Address:	400067
Website:	www.flipkart.com/lavino-battery-lava-iris-x1-black/p/itmef32ktfquybu2?pid=ACCEF32KXDCDFV52

The flipkart people send me 1800 mah battery instead of 2100 mah battery shown in website.
order id OD[protected]
they told that their service is trusted showing in advertisement with celebs but all that thing is crap.
They dont even check from backend what product is send sending products in a box of sweet.That is poor.My parents bought that this battery and after 10 days their battery gave problems and then when i looked the capacity was low.The parents dont know what capacity and that things are .Now when i saw i called up straight and they people straight denied that out of policy .Means that is really bad from your end that service is poor and fake.Means they dont even check what they are sending.
If they would have checked then this would not have happened.
Are we going to come and check what they are sending?
its their duty why we should suffer.