Generally, you can only use funding sources that are linked to your account, such as you Bank Account, Debit or Credit Card. However, your brother could take cash out at an ATM from his Credit Card. Then go to a retail store that provides MoneyPaks and purchase a Green Dot card with the cash. Add funds from the Green Dot card to your PayPal account. View the demo here to learn more... https://www.moneypak.com/PayPal/Index.aspx
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