PMPro Customizations For Specific country on Buddypress pro

<?php
/*
Plugin Name: PMPro Customizations
Plugin URI: http://www.paidmembershipspro.com/wp/pmpro-customizations/
Description: Customizations for PMPro
Version: .1
Author: Stranger Studios
Author URI: http://www.strangerstudios.com
*/
//add tax info to cost text. this is enabled if the danish checkbox is checked.
function customtax_pmpro_tax($tax, $values, $order)
{
	$tax = round((float)$values[price] * 0.23, 2);
	return $tax;
}

function customtax_pmpro_level_cost_text($cost, $level)
{
	//only applicable for levels > 1
	$cost .= "";

	return $cost;
}
add_filter("pmpro_level_cost_text", "customtax_pmpro_level_cost_text", 10, 2);

//add BC checkbox to the checkout page
function customtax_pmpro_checkout_boxes()
{
?>

<?php
$args = array(
    'field'   => 'País', // Exact field name or field ID.
    'user_id' => bp_loggedin_user_id() // ID of logged in user
);?>
<?php
$data = bp_get_profile_field_data( $args );
if ( $data == 'Portugal' ) {?>
<div style="display:none" >
<input name="taxregion" type="checkbox" id="taxregion" value="1" checked="checked" <?php if(!empty($_REQUEST['taxregion']) || !empty($_SESSION['taxregion'])) {?>checked="checked"<?php } ?> /></div>
<?php } else {?>
<div style="display:none" >
<input style="display:none" name="taxregion" type="checkbox" id="taxregion" value="0" checked="CHECKED" <?php if(!empty($_REQUEST['taxregion']) || !empty($_SESSION['taxregion'])) {?>checked="checked"<?php } ?> />
</div>
<?php }?>

<?php
}
add_action("pmpro_checkout_boxes", "customtax_pmpro_checkout_boxes");

//update tax calculation if buyer is from portugal
function customtax_region_tax_check()
{
	//check request and session
	if(isset($_REQUEST['taxregion']))
	{
		//update the session var
		$_SESSION['taxregion'] = $_REQUEST['taxregion'];

		//not empty? setup the tax function
		if(!empty($_REQUEST['taxregion']))
			add_filter("pmpro_tax", "customtax_pmpro_tax", 10, 3);
	}
	elseif(!empty($_SESSION['taxregion']))
	{
		//add the filter
		add_filter("pmpro_tax", "customtax_pmpro_tax", 10, 3);
	}
	else
	{
		//check state and country
		if(!empty($_REQUEST['bstate']) && !empty($_REQUEST['bcountry']))
		{
			$bstate = trim(strtolower($_REQUEST['bstate']));
			$bcountry = trim(strtolower($_REQUEST['bcountry']));
			if(($bstate == "pt" || $bstate == "portugal") && $bcountry = "pt")
			{
				//billing address is in PT
				add_filter("pmpro_tax", "customtax_pmpro_tax", 10, 3);
			}
		}
	}
}
add_action("init", "customtax_region_tax_check");

//remove the taxregion session var on checkout
function customtax_pmpro_after_checkout()
{
	if(isset($_SESSION['taxregion']))
		unset($_SESSION['taxregion']);
}
add_action("pmpro_after_checkout", "customtax_pmpro_after_checkout");