How to pay: card or crypto

Our four addresses use four different formats, so a wrong-network send is easy to spot: Bitcoin's starts bc1, Ethereum's starts 0x, Solana's is a long base58 string, and USDT on TRON starts T — so if you pick the wrong chain family, your wallet or exchange refuses the address before a cent moves. That rejection is a safety net, not a bug. The one case nothing catches: our 0x address is also valid on Arbitrum, Optimism, Polygon, Linea, zkSync and BNB Smart Chain. USDC alone is natively issued on more than 30 networks and we confirm payments on three of them — Ethereum mainnet, Base and Solana. So on the withdrawal screen, select the network by name instead of trusting the default. If you're sending USDC and the choice is yours, pick Base — it's the same dollar to us and the network fee you pay is a small fraction of a mainnet send.

Almost every "I underpaid" story is a network fee. Wallets and exchanges take that fee out of the figure you typed, so entering the order total can send slightly less than the order total. Ignore the box you typed in and read the "recipient gets" / "you will receive" line — that number is the one that has to match. Two shortcuts that remove the arithmetic completely: pay in USDC (it tracks the dollar 1:1, so the total is the amount), and scan the checkout QR with your phone so the address fills itself in — the long string is the part people actually get wrong.

None of our four addresses use a memo, destination tag or comment. Some exchange withdrawal forms show that field anyway, because chains like XRP, XLM and Cosmos need one — none of ours do. Leave it blank. Anything typed there is simply ignored, and an empty field will never be the reason a payment doesn't arrive.

Send the whole total in a single transfer to a single address. Splitting it across two coins or two addresses doesn't get you there faster, it just makes the payment harder to match to your order. The moment it's sent, copy the transaction hash and paste it into the explorer for the network you actually selected at checkout — mempool.space for Bitcoin, Etherscan for Ethereum mainnet, BaseScan for Base USDC/USDT, Solscan for Solana, or Tronscan for TRON USDT. The same 0x destination on Ethereum mainnet and Base does not make their transactions interchangeable. You can then prove exactly what left your wallet and where it landed, yourself, without needing anyone to confirm it for you.

Every address you should ever send to is the one rendered on our checkout page, on this site, over HTTPS — and you can open it on a block explorer before you move a cent. We will never email, message or text you a different wallet address, and we will never ask you to re-send a payment to a "new" or "corrected" one. If any message claims our address changed, it did not come from us — close it, load checkout yourself, and compare the address character by character. Checkout is the only place our addresses ever come from — take it from there every time and your payment reaches us.

Your total is in dollars; what you send is coin — so the exchange rate decides whether it "matches". We fix that rate at the moment your transfer hits the network, and the timestamp is on your own transaction, so we are both reading the same number off the same public ledger. Whatever the market does while your payment confirms is our problem, not yours. To put a real size on it: across the 350 hours to 27 July 2026, the median one-hour move in Bitcoin was 0.16% and the worst single hour was 1.86% — on a $500 order, about $0.80 typically and $9.30 in the worst hour of two weeks. You will never be asked to top up because a chart moved after you pressed send.

Even at the right rate, an exchange's withdrawal fee or plain rounding can land you a little short. If what arrives is within 1% of your total, or within $5 — whichever allowance is larger — the order is simply paid. We ship, and you never get an email about the difference. On our cheapest item ($59) that covers you to $5; on the most expensive ($3,199) it covers $31.99. This is policy, published in advance — not a favour we might decide to do.

Short by more than that and nothing is lost, and nothing is quietly kept. We email you the exact arithmetic — what you sent, the price it was worth when you sent it, and the gap to the cent — and you pick one of three: send the difference in the same coin, switch to anything we stock at the price you actually paid, or have it back. Sending it back means what landed goes to any address you name, minus only the network fee to move it — well under a cent on Solana, and on 27 July 2026 the Bitcoin network was clearing at 1 sat/vB, roughly 9¢ for a typical payment. We do not keep money for an order we didn't ship.

Sending slightly too much is the more common mistake, and the easy thing for a store to do is say nothing. We email you the difference and you choose — back to a wallet you name, or held as credit against your next order. Either way you hear it from us before you spot it yourself.

bc1qystewu92zx7cg2hy0fhsfl7lz8clrypzd7qqcx
Open this wallet on mempool.space →

0x24AFe80538427bea63c39fB319A1cc05e497beac
Open this wallet on Etherscan →
Open this wallet on BaseScan →

HKzikjuUxbe1ibvzhicZAKP9tuaEcaNRETC8whv7hx3p
Open this wallet on Solscan →

TCjEXGkC6xL9szn3QDoyHwGz9T5fsTHgzf
Open this wallet on Tronscan →