What is the correct single word for the bank operation when you need to put cash to your banking card?
Top up is a common expression used with cards:
to add money to (a loan, bank account, etc) in order to keep it at a constant or acceptable level
- If it’s a prepaid card, so you need to top up your account with money before using. That’s why it is sometimes known as a pay as you go credit card or a top up credit card.