Originally posted by CACE:

I'm currently in Greece and I am planning to buy a Steam Gift card from local store, but my Steam account is set in Serbia is there any restriction for country or region or is it just tir to a currency that your account use

Are there country restrictions on Steam Wallet Codes?

Yes. We have made some changes to how Steam Wallet Codes are redeemed on Steam, as part of our ongoing effort to reduce scams like the ones explained here. These changes should not impact regular customers who enjoy using Steam wallet codes they purchase at retail in their local currency.

Each Steam User Account is associated with a specific currency, which you can see in the top right corner of your Steam Client. Going forward, you may encounter an error if you try to activate a Steam Wallet Code issued in a different currency than the one of your Steam User Account.

If you have questions about your ability to redeem Steam Wallet Codes, please contact Steam Support. If you are concerned about the legitimacy of a Steam code you have purchased, you should ask your retailer.