Consumer Redressal

I purchased an adidas shoe for Rs1342/- from 100bestbuy.com on 26th May`14 & accordingly payment is also made to them on the same day. But as on 11th May2014 goods are not received by me. I am continuously following them over phone & emails .Their customer executive on 6th june 2014 informed me that the product is not yet delivered and will deliver the same and they cannot refund the amount paid by me .Still now I have not received the product. This is absolutely cheating. I request you to take appropriate measures to refund the amount along with penalty