Flipkart cheating to REFUND money

On
7/8-09-2013 I ordered (OD 30908064438) junior badminton racket to
online Flipkart (Rs 270+shipping 50=320).12/9/2013 I received a damaged
one.As per flipkart policy of replacement I send the item by
Bluedart(60154631084.dt-13/9/13 Rs.90/-).But after 12 days; they send
the same one(same bar code) with poorly repaired. Flipkart’s promise to
pay all amount including courier charges.I resend the item on 27/9/13
via Bluedart (60154631460).After 9/10 days Flipkart transfer only Rs 320
to my SBI Bank A/C(20041955249/00074.IFS-SBIN0000074).Rs90 to WALLET of
Flipkart to bound me for next purchase and last Rs90 no trace They
demand it pay in my A/C no.S-20131000003879.but it is not true. The
entire amount not so big BUT THE TENDENCY IS VERY MUCH HURMFUL