Once payment has been processed we are not able to alter your order. If you forgot to add an item feel free to place a second order.  Along with the second order add a note indicating your first order number and to request shipping for both orders be made together.  We will do our best to ship the orders together but we cannot guarantee this. If you ordered something you did not intend to please send an email to info@guamcanada.ca as soon as possible.