Using your Value-Added Tax (VAT) refund in conjunction with a Mastercard can provide added convenience and security when traveling. By linking your VAT refund to your Mastercard, you can have your refund credited directly to your card, allowing you to access the funds more easily and securely. Additionally, using a Mastercard allows you to make purchases and withdraw cash from ATMs while traveling, without the need to carry large amounts of cash. However, it is important to note that specific requirements and availability may vary depending on the country and merchant. It is recommended to check with your bank and the merchant before making any purchases or withdrawals.