Awazon issues a fresh deposit address per order, so the bookkeeping is handled for you. What you control is where the coin comes from and how you send it.
Do not send straight from a KYC exchange
Sending directly from an identity-checked exchange to the market ties your name to the deposit through the exchange records. Route through a fresh wallet you control first, such as Sparrow or Electrum. Better still, hold Monero instead.
The deposit
Open the order, copy the deposit address Awazon shows, send exactly the amount from your wallet, and wait for the confirmations the market asks for. The balance credits once they land.
Fee awareness
Bitcoin fees swing with congestion. Overpaying wastes money, underpaying gets the transaction stuck. Check current fee guidance and pick a rate that confirms within a reasonable window.
After it clears
Keep the on-market balance sized to the order in front of you. Do not park a large balance on any market between orders.