For payers

Paying from an exchange

Withdraw to the address on the payment page. Three things matter: the coin, the network and the amount that arrives — exchanges take their withdrawal fee on top or out of the amount.

Three rules

Network. TRON is called TRC-20 (sometimes "TRX"), BNB Smart Chain is BEP-20 (sometimes "BSC"). Base, Arbitrum One and Polygon PoS keep their names (Polygon is sometimes "MATIC"). A withdrawal in another network will not reach the invoice.
Amount received. Enter the amount so that the received amount equals the amount on the page. Most exchanges show "You will receive" under the field.
Address. Paste it and compare the first and last six characters. The address is one-time: for the next payment you get another one.

TON: the comment is required. On TON the address is the seller's wallet, and the payment is matched by the comment shown on the page (AX-…). Exchanges call this field Memo, Tag or Comment. A withdrawal without it is not credited automatically: the seller has to match it by hand.

Binance

Wallet → Overview → Withdraw → Crypto → choose USDT → paste the address → choose the network (TRX / TRC-20 or BSC / BEP-20) → enter the amount and check "Receive amount" → Withdraw. Binance may ask for 2FA confirmation.

Bybit

Assets → Withdraw → USDT → On-chain withdrawal → paste the address → Chain type: TRC-20 or BEP-20 (BSC) → amount → check "Amount received" → Submit.

OKX

Assets → Withdraw → USDT → On-chain → paste the address → Network: USDT-TRC20 or USDT-BSC → amount (OKX shows the fee separately) → Withdraw.

If the exchange held more than expected and the invoice says "Partially paid", send the remainder to the same address while the top-up window is open. Paid and the status did not change? Press "I have paid" on the page and paste the transaction hash from the exchange history.