Yami doesn't have a reliable sitewide code for new users. What you actually do is create an account and check your "Coupons" tab—they auto-load a welcome voucher pack there. Or just grab a referral link from Reddit. Also, make sure items say "Fulfilled by Yami," because third-party vendor items won't qualify at checkout.

Yami’s referral setup gives you $10, but the catch is it rarely stacks with their sitewide promo codes at checkout. You enter it in the "Coupon Code" field, but if there's already a flash sale running, skip the referral link entirely. Just do the daily app check-in for points instead; it's way less hassle.

You can just use normal US credit cards, Apple Pay, or PayPal at checkout. It bills in USD directly so no foreign transaction fees to worry about. Just make sure your cart is actually "Fulfilled by Yami" instead of random third-party sellers, otherwise you'll get hit with separate shipping fees for your snacks.

You’ve got a tiny window to cancel on Yami. Go straight to "My Orders" in the app. There’s a self-cancel button, but it disappears the second the warehouse starts processing. If that button is gone, don't bother emailing. Hop onto live chat immediately. Once it's packed, CS won't stop it and you're stuck returning.