Cuenta de eeuu en amazon y compras directo ahi:
A amazon vende os cartões de psn americanos na sua loja online, e são fulfilled pela amazon.
http://www.amazon.com/10-PlayStation-Store-Gift-Card/dp/B00GAC1D2G
Se te pedir uma morada americana para fazeres a compra mete de uma coisa pública (acho que a minha é a da universidade de harvard), o código é mandado por email logo após a confirmação da compra.
Quanto a compras fisicas, mudas a morada de envio para uma portuguesa em casos de jogos...mas ai pode ou não compensar.
Thanks for your response, I'm sure that gold edition is better option but it is expensive, 100$ I think. Just one more question, this is gift card for USA region right ?
You have to add the $10 Playstation card to your cart. Make sure you are adding the one that is "digital code" or whatever the wording is. Here is an example of one. Not the one where they physically deliver the card to you. Then at checkout you have to make sure the payment method is "digital credit". If you don't have $10 dollars of digital credit, you can apply what you have towards the payment.
Like this https://www.amazon.com/dp/B00GAC1D2G/ ?
I am buying PS store credit from Amazon, the digital code version, then i use it to recharge my account this works from anywhere, and Amazon charge the exact value 20$ card for 19.99$, but make sure you are buying the gift card for the region you want, check out the link bellow, its for the American region:
https://www.amazon.com/dp/B00GAC1D2G/ref=cm_sw_r_other_awd_dvq4wbSND1MA6