The online retail store has cheated you and has dishonestly induced you to transfer Rs 15000 as well as your card details.You should track down the headquarters or any given address on the website and serve them with a notice to refund the money or face the court proceedings. The domain owner after being entrusted with any property, which in this case would be the card details, dishonestly converted them to his own use and has committed criminal breach of trust. The domain owner has dishonestly made use of your card details, which were a unique identification feature owing to the unauthorized transactions from your account. The Criminal Investigation Departments have set up cyber-crime cells in almost all the cities which can be approached with such a complaint, and they can also be filed online. Also, immediately change your card’s password and other associated details which can be exploited by the website owner.
Indian Penal Code 1860, s 420
Indian Penal Code 1860, s 405
Information Technology Act 2000, s 66C