Cash advance fees are the same fees that are charged when you use a credit card to withdraw money from an ATM or branch. The interest rate for this type of transaction is usually higher than using the credit card for a purchase.
When you pay for a cash gift on Birdie using your credit card, your card issuer may charge an additional fee (either a fixed dollar amount or a percentage rate–whichever value is higher). They might also charge other cash advance service fees including a higher APR.
Things could add up! Be sure to check with your card issuer about the fees they may charge.