payment not refund AB1341096

I was buy a product of limo power bank at Rs 300/- through askmebazaar on 4th mar 2015 with order no AB1341096 but product was received me as defective & i wad lodge a complaint at coustmer care on 10th mar they assure me that thay will refund my money in 3 4 days & pick back his product on 14th mar 2015. After this so many call give by me in coustmer care & every time they give us new new complaint no.
I am belong from a very poor family plz help me to back my money.
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