In some cases, the credit of a transaction’s amount can take some time to complete. More specifically:
If the card is Mastercard or Diners/Discover, then the credit amount is displayed after 1 to 2 working days, depending on card’s issuing bank.
If the card is VISA, then the amount of credit is displayed immediately, as long as the type of the card (e.g., Business, Employee, etc.) and the issuing bank, participate in the direct debit program (VISA Direct). Otherwise, the amount is credited in 1 to 2 working days.