[Updated: 4/10/2024] If we're only talking about a week or so, especially on International orders, give it some more time. The postal system is still very messy, particularly in certain distribution centers. Major holidays can also cause delays (particularly in November-December). If it's a domestic delivery and it's been more than 20 days: After 20 days, you can file a claim with USPS, or ask me to do so in your place. Please be aware that I will be required to wait for them to conduct a mail search, and that I cannot refund you until they've confirmed that the item is indeed gone. Oftentimes, they'll actually find it, or it'll turn up on its own while the investigation is ongoing! If your order is international, you chose Priority Mail and it's been more than 40 days since the last update: Contact me and let me know so I can file a claim. I will not be able to file the claim until at least 40 days has passed, and it may take even longer for a search to be conducted. As with domestic orders, I will not be able to refund you until the search is concluded, since it's not uncommon for the package to 'un-stick' and show up fashionably late. If your order is international, you chose First Class shipping, and your package progress never updates/seemingly disappears: I warned about this everywhere I could for a reason: only choose First Class at your own risk. These packages are not insured, do not have proper tracking, and are completely non-refundable. You can attempt to contact your local mail carrier if the package went off the radar in your own country, but I will not be able to offer any assistance (monetarily or otherwise).