public function add_referral( $user_id, $price, $product_id, $order_id)
	{
		// See if affiliate ID present in cookie
		$affiliate_id = affiliate_wp()->tracking->get_affiliate_id();
		$affiliate_id = apply_filters('awp_idc_get_affiliate_id', $affiliate_id);
		if(!$affiliate_id){
			return;
		}
		// Ensure affiliate is active
		if ( !affwp_is_active_affiliate( $affiliate_id ) ) {
			return;
		}
		// Don't let users refer themselves
		if($user_id == affwp_get_affiliate_user_id($affiliate_id)){
			return;
		}
		// Get visit ID from cookie
		$visit_id =  affiliate_wp()->tracking->get_visit_id();
		// Get referral rate
		$affiliate_rate = affiliate_wp()->settings->get( 'referral_rate', 15 );
		// Fetch order to get transaction ID and level name
		$order = new ID_Member_Order($order_id);
		$order_details = $order->get_order();
		$transaction_id = $order_details->transaction_id;
		$level = ID_Member_Level::get_level($product_id);
		$level_name = $level->level_name;
		// Log affiliate purchase
		$args =  apply_filters('awp_idc_referrals_args', array(
			'affiliate_id' => $affiliate_id,
			'amount'       => $price*$affiliate_rate/100,
			'status'       => 'unpaid',
			'description'  => "IgnitionDeck Package - $level_name \$$price",
			'context'      => 'ignitiondeck',
			'campaign'     => '',
			'reference'    => $transaction_id,
			'visit_id'	   => $visit_id
		), $affiliate_id, $price, $affiliate_rate, $level_name, $transaction_id, $visit_id);
		$referral_id = affwp_add_referral( $args );
		if( $referral_id ) {
			affiliate_wp()->visits->update( $visit_id, array( 'referral_id' => $referral_id ), '', 'visit' );
		}
		do_action('awp_idc_referral_created', $referral_id);
	}