Once an order is placed we are unable to make changes to it. However, what we CAN DO is cancel and refund the existing order* so you can then place a new order. It is always best just to place another order if you need to add another item or make any modifications.
*If you need to cancel completely or change an item, please know that we can do this if it’s within an 8 hour window from the time you placed the order. We will do our best to catch these within 8 hours but oftentimes apparel & mug items enter into production quickly and we cannot catch them in time OR before non-apparel items ship.