To sell magazines on Issuu, a publisher must be based in a country supported by our payments partner, Stripe. You can see their full list of supported countries on their website.
Regarding currently supported currencies under Digital Sales you can choose to sell your magazine in USD, EUR, AUD, CAD or GBP. Readers can purchase your publications from nearly anywhere in the world with a major debit or credit card. If you as a publisher need to change your default currency to one of the available currencies listed above, please contact Issuu support