Flipkart — regarding poor service of battery of samsung galaxy note 2

Address:

New Delhi, Delhi

sir/madam, i have purchased a battery of the note 2( EB595675LU Black) through flipkart.it was delivered to me on 13th july in delhi.order item id is 89721834 of rs 999/-. order id : OD[protected] DTD : 08/08/2014. I CHARGED THE BTY IN MOBILE for 9 hours regularly.first day it got discharged within six hrs.again i charged the battery for another six hrs but this time also it got discharged within the same time i.e 6 hrs. i had changed the present battery due to this problem only.when i had purchased the new mobile that time it gave me service for 12 to 18 hrs.after more than 18 months it gives me service for 6 to 8 hrs. even if data of mobile is on. i am not getting proper services which doubt about the genuiness of product.i feel there is some problem in product.i had talked to your staff on telephone before purchase who had assured me that the product will be original. so i request u to kindly change the bty so that i can get the genuine product. i shall wait for your reply.