my card asked for authorization from the bank whilst paying for an item. Guy got the code gave me receipt and goods and off i went. My card then got declined at another store. I rang the bank who put me through to fraud department who reactivated my card but told me that the transaction defiantly didn't go thorough. i told store this and they said it had because i have a receipt. No money has been taken from my account and bank still denying it. what should i do?