We are most sorry this happened! We want to assure you that our fulfillment partners deliver over a million orders each month, and such mix-ups are incredibly rare. If you got a photobook that does not belong to you, please take a photo of the cover and email it to firsties@photobook.ai. We will work with you to ensure the correct order is printed and shipped to you at no charge. Please make sure to destroy the incorrect photobook immediately.