I live in a country which is not supported by the Playstation Store. Therefore, if I have to buy digital content, I have to buy a PSN card first. A credit card is easier to use but the PS store doesn't approve my payments. Can SONY just make the store more liberal and accept credit cards from around the world?
Try making a "global" PS store SONY people. It would help a lot.
You have to buy according to your region. Sony has locked down more then before but you could still get around it, but it could cost you if you get caught using a fake address from another country.
Edit: user requested edit
Buy PSN cards in your area..... They sell them
I wouldn't risk credit card fraud by having a credit card on my account. I buy PSN cards at the store.