A debit card payment is settled immediately. A credit card payment is actually a small loan that's settled at the end of the month. This goes back to the time that shops made a carbon copy of the card, fill in the amount and let the buyer sign it. That's why the numbers were raised. Basically they were used as cheques.

Where I live, the credit card is better than the debit card. Better protections against fraud.

Credit cards are more secure.