Set up multiple SagePay accounts on a single Woocommerce website

My WooCommerce website is using the SagePay plugin to take payments. I am going to be building a new geography (USA) and I need somebody to make the orders taken for the USA go to a different SagePay account. I requested support from the plugin developer about this, his response was: "There is a filter you can use to set the vendor name before the transaction is sent to Sage $data = apply_filters( 'woocommerce_sagepay_direct_data', $data, $order ); You can use that to check whatever you require from the $order object and set the vendor name accordingly." My site needs to check the location of the order being placed and send the payment to the correct SagePay account (USA/non-USA). I think I will be using this plugin to display the correct products by location: [login to view URL]