It's do able. Just follow what I said. That's how I got my Premium off GameStop.

Amazon allows you to use a non-US credit/debit card with US address. Get the GameStop eGift card from Amazon. $25 GameStop eGiftCard

Edit: Or you can skip the whole gift card thing and buy BF4 Premium Edition off Amazon as mentioned by /u/wachkyri. Again, non-US credit/debit card with US address.

Edit2: For clarity. Credit card uses Singapore address but the Amazon account has a US shipping address