No. Gift cards redeemed through CashCow are region-locked and can only be used in the country you selected at the time of redemption.
To avoid any issues, please ensure you redeem gift cards valid in your country of residence.
For example, since our gift cards are issued in partnership with Amazon, a gift card for Amazon.com cannot be used on Amazon.de or Amazon.co.uk, as each regional Amazon site operates with its own unique gift card system.