How to Insert field (payment instructions)

I am trying to take payment instructions out of the purchase receipt has anyone resolved this?

I was looking for that too.

This solution seems to work (for test gateway. For custom manual gateways replace _test_ with your gateway):

Place this code at the bottom of function.php file in your theme

function _filter_test_merchant_customer_notification_raw_message( $message, $notification ){
	$purchase_log = $notification->get_purchase_log();
	if($purchase_log->is_accepted_payment()){
		remove_filter(
			'wpsc_purchase_log_customer_notification_raw_message',
			'_wpsc_filter_test_merchant_customer_notification_raw_message',
			10,
			2
		);
		remove_filter(
			'wpsc_purchase_log_customer_html_notification_raw_message',
			'_wpsc_filter_test_merchant_customer_notification_raw_message',
			10,
			2
		);
	}
	return $message;
}

//edit testmode
add_filter(
	'wpsc_purchase_log_customer_notification_raw_message',
	'_filter_test_merchant_customer_notification_raw_message',
	1,
	2
);
add_filter(
	'wpsc_purchase_log_customer_html_notification_raw_message',
	'_filter_test_merchant_customer_notification_raw_message',
	1,
	2
);

Source: https://releasethegeekinside.me/wp-e-commerce-bug-remove-payment-instruction-in-receipt-purchase-email/