PortaMart — I whant to return my money

I hav paid money Rs 164 rupees by sbi masrocard. My order id 118039, after few days .i recive a mail, " Dear Customer, You have ordered "Flip Cover for Karbonn A19- Black", But the item is not in stock. But the following item is available in stock in same price. "Flip Cover for Karbonn A19 - Universal-Black" But i cant, purchase other flip civer.So return my money