public void MakePaymentSuccessfully()
 {
     var repo = new ItemRepository();
     var itemId = "7c269f52-2236-4aa5-899e-a2e3ecadbc3f";
     var cardId = "2e2ed4fb-4eb2-458e-99f9-2bf0b3004933";
     var userId = "ec9bf096-c505-4bef-87f6-18822b9dbf2c";
     repo.MakePayment(itemId, cardId, userId);
 }