Cant use canadian credit card to change from australian subscription

[jacksonritter]

I have an Australian subscription but am currently living in Canada. Whenever I try to change to Canada firstly it is asking for a charge in Euro. Still when I try use either of my canadian cards I get the error message "Oops, seems your card or payment provider is having a bad day. Don't worry, no money has been charged. Try again or use another payment method." Any help would be much appreciated.