So yeah, inquiring minds want to know.

I ordered my book last night. However, since I was, shall we say... a little tipsy... I forgot to order calendar as well.

Seeing how the postage is, lets say steep and leave it at that... is there a way to get in contact with the seller/warehouse and let them know I'd like to add a calendar to my order as well? I'd really prefer not to pay that kind of money for postage again.