CEVAP:

The working of debit cards is slightly different than the working of credit cards.  Using a debit card is similar to paying with cash, except that the customers will  not have to carry cash with them. When debit card is swapped by retailer at the  point of sale terminal (POS) or cash counter, the bank balance of the customer is automatically reduced and the amount is transferred to retailer’s account. Hence there is no third party involve in debit card transaction.