nowPayments 的提现收费逻辑是什么？提 20 到账 15.

发了 4 个 ticket ，每次都有新的解释，但都没有明确解释少的 5 刀的根据是什么。

• “USDTTRC20 network fees are quite high”
• “Processing tokens on Tron is quite expensive”
• “There are several internal routing transactions”
• “the network fee … can be different from the gas fee on the block explorer because of our liquidity provider”

nowPayments 显示提了 19.9 USDT ，tronscan 链上显示只发了 14.88 USDT