A simple guide to crypto payments.
Understand tokens, networks, confirmations and the exact amount before sending a payment.
Last updated · November 6, 2026
Token and network must both match
USDT and USDC exist on multiple networks. Only use the token contract and network shown on your invoice. A correct-looking address on the wrong chain is not a valid payment.
Send the exact invoice total
Each invoice includes a small distinguishing amount shown before payment. Send all six decimal places. Wallet and exchange withdrawal fees are separate; the recipient must receive the exact invoice amount before the payment deadline.
Confirmation, then delivery
After the required network confirmations, the server checks the token, recipient, amount, transaction time and prior use of the transfer. Your reserved key is delivered to your private order page. Blockchain payments are generally irreversible; approved refunds are separate transfers.
Before you buy
Each product lists its own requirements and method. A quick check now avoids most top-up problems later.