[dismiss] FastTech has just returned from a 8-day national holiday. Staff response time is elevated. Sorry and we're working hard on it!
FAQ
Can I add an item to my order?
Yes, but you need to add it before your order is packaged for shipment. Let us know and we will do it for you.

In the meantime, placing a new order is likely faster. You can either let the new order ship separately, or request to combine your two orders.