Note you DO NOT require a PayPal account to donate, only an Email Address. You may donate once off OR a recurring donation.
PayFast is a South African company, and our preferred method for you to transfer to reduce the transaction fees, compared to PayPal.
However, it only accepts funds in South Africa Rands (ZAR). You will have to convert from your currency to ZAR. At the time of writing, 17 ZAR was approximately = 1 USD.