01-05-2013 16:17 - edited 01-05-2013 16:19
There is a limit using a card:
Can I top-up using different methods on the same day?
Yes, you can use other methods of topping up on the same day as your Web Top-Up. However, please do bear in mind that there is a £30 limit per 24 hours for credit/debit cards.
In addition, the maximum amount you can top-up your mobile using your credit/debit card is £100 every 30 days.
If you need to top-up more than this then you will need to use one of our other top-up methods, such as Etop Up or vouchers.
Sky Unlimited Broadband - Windows 10 - Nexus 4 Android 5.1.1