/**
 * buyCRED Payment Completed
 * @version 1.0
 */
function mycred_pro_buycred_payment_completed( $reply, $transaction_id, $gateway ) {

	if ( $reply ) {
		// Payment was completed successfully
	}
	else {
		// Payment failed to complete (declined by myCRED)
	}

	return $reply;

}
add_filter( 'mycred_buycred_complete_payment', 'mycred_pro_buycred_payment_completed', 10, 3 );