I topped up a while ago and got a text message telling me I needed a credit card to access "mature" websites. I thought 'OK that's fair' Then when I moved to another area and I didn't have access to any broadband, I found out that this site filter blocks tons of websites which have no pornography. It also charges money to the card which I don't really have. So I'm a bit stuffed really, does anyone know if Visa Debit cards work or am I completely out of luck?