private function add_hooks () {
    // Modify here if changing contact form
	add_action('wpcf7_mail_sent',array($this,'integrate_affiliate_code',));
	}

private function integrate_affiliate_code () {
    // Use a jsonHandler to manually add 5 Pounds to the affiliate
	$jsonHandler = new WPAM_Util_JsonHandler;
    // Modify here if you want to increase payouts or switch affiliate plugins
	$jsonHandler->addTransaction($affiliate, 'credit',5, "Consultation Referral");
        }