How to buy Minecraft with my debit card?

I have a President's choice debit card for Canada and I want to know how can I use it to buy minecraft

Hasan

Not sure about the PC card but if you don't have a credit card you can do what I did, I went to a couple local stores and the food Basics near my house sold prepaid credit cards, bought a $50 prepad visa and used it for MC and a couple of other small transactions.

Guest