Orbisius CyberStore Extension: allows you to switch to a PayPal Micropayments account if the order amount is $11 or less. The amount can be changed (since v.1.0.1)
That way you will save intransaction fees.
Orbisius PayPal Micropayments for WooCommerce
Note: If, after the purchase, you don't get the download email go to Support > Download Purchased Product
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