In essence, the cards hold cash, rather like your conventional UK bank account does and are little different to your UK bank card ie. what we used to call a ‘cheque guarantee card’. They are used in much the same way.
The cash the cards hold, you ‘charge up’, in exactly the same way as you’d move money from a current account into say a deposit account, via an app or website.
The cards have a notional advantage as they can hold several currencies at once. In other words, they can hold say euros, pounds and dollars separately and simultaneously. This is useful only if you travel regularly into the euro zone or America.
Some people like them as they place a finite amount on how much they spend on their holidays, rather than simply whipping out a credit card and possibly losing track of spending. It also possibly reduces their fear of losing a credit card and the thief belting into a possibly significant credit limit before the loss is realised.
Are they difficult to charge? No.
Are there any downsides? Possibly / yes.
1. The amount of cash the card holds is finite. It will never be greater than the amount you have charged it up with. In other words, there is no overdraft or extended credit lit of any sort. This can be a disadvantage when buying fuel from automatic pumps, which often take a significant ‘holding’ debit, far in excess of the value of fuel bought. This, temporarily, reduces the available cash left, until the card / fuel company make a correction, which might take up to 24 hours. Likewise, some hotels have been known to debit a charge in advance of arrival, cat hing out the unwary, who find that (much to their surprise and annoyance) they do not have the cash balance they might of otherwise thought they had.
2. Some ATM machines might make a charge to withdraw cash, in exactly the same way as a credit card company (understandably) makes a charge for cash withdrawals. Similarly, some charge card operators, might themselves make a charge for withdrawing cash from an ATM, too.
If you don’t see the advantage of one, don’t have one. It’s not compulsory.
