Please ensure that the card you are using to top-up has not expired and that you have enough money in your account to cover the top-up amount. Please note for a low balance top-up, it will only be triggered once a day so you may have to wait up to 24 hours to see the money in your account.
If this is not the case and you can see that your card has been charged, please contact our Customer Support you will need to show proof the money has already come out of your linked account.