Street Style Store — Less amt refunded

Address:	New Delhi, Delhi
Website:	Street style store

I had place an order which they couldn't delivery due to reasons best known to them. They issued my refund in the form of credit note which was of an amt of 300rs but the amt paid by me was 550rs, 300 was from my account n 250 was paid through a credit note which was already in my account. Have contacted them 3 times through email but they aren't responding.
Hell customer service... Horrible service...