This kind of errors is (sadly) very much common for people that aren't aware that one should have all their senses turned on when making any kind of transaction that uses blockchain as a backbone especially the transactions that are destined to be received from custodial wallets (where you don't control the private keys of it). There are lots of websites that will tell you what you should do whenever you're planning on sending any amount of crypto to another address in order to avoid being stuck in a situation like yours, take Ledger Support page[1] for example:
Sending- Always send a small amount first. Then verify that the transaction was properly received by the recipient before proceeding to send larger amounts.
- Use secondary communication means when obtaining a recipient address or QR code.
[Example: double-check an exchange deposit address through SMS, email or a messaging app when possible.
- Check recipient addresses after you copy and paste. Malware on your computer might replace addresses in your clipboard.
- Verify that the recipient address, amount and fees are correct and that they are the same on both your computer and the device’s screen when sending a transaction.
Regarding your specific problem I would advise you to follows the steps that a fellow member is also doing in trying to retrieve BTC that he deposited in a USDT wallet at Poloniex -
Poloniex SupporT! Please Help Me!! (Accidentally deposited BTC to USDT wallet ). What you'll see is that in these scenarios you'll only be able to solve them with the help of the exchange itself and it may take a while before you manage to recover your funds, especially during these times as they will use the "covid excuse" to say that they are overwhelmed thus prolonging even further these kind of situations.
[1]
https://support.ledger.com/hc/en-us/articles/360006433934-Verify-transaction-details