A month ago, my friend made a serious mistake while transferring USDT, resulting in a loss of $25,500. This painful experience reminded us to be especially careful in cryptocurrency transactions. Here is the story and the lessons every cryptocurrency user should learn.

**Incorrect Transfer**

My friend intended to transfer $25,500 worth of USDT from his KuCoin account to his business partner's OKX wallet. The other party provided a wallet address that supports the ERC20 network and hoped to complete the transaction smoothly. But here's the problem:

While setting up the transfer, my friend accidentally selected the Polygon network instead of the correct ERC20 network. He did not notice this mistake and proceeded with the transaction.

After the transfer was confirmed, the USDT was deducted from the KuCoin account but never reached the other party's OKX wallet. Despite multiple attempts to recover the funds, the money could not be retrieved because OKX's wallet does not support deposits on the Polygon network.

**Lesson: Avoid Major Mistakes in Cryptocurrency**

This incident once again reminds us to be extremely careful and double-check all information before every cryptocurrency transaction.

**The Issues:**

1. **Network Mismatch**: The sending wallet address supports the ERC20 network, but the transaction selected the Polygon network.

2. **Irreversible Transactions**: Unlike traditional banks, cryptocurrency transfers cannot be reversed once confirmed, and errors cannot be corrected.

**Best Practices to Avoid Similar Mistakes:**

To prevent similar issues from occurring again, here are some suggestions:

1. **Double Check Wallet Address**: Always recheck the recipient's address and the blockchain network they specified.

2. **Ensure Network Consistency**: Choose a network that matches the blockchain network specified by the recipient.

3. **Conduct a Small Test First**: Before making a large transfer, send a small amount of funds to ensure everything goes smoothly.

If you like contracts, enjoy studying market trends, and analyzing techniques, click on my avatar. I share years of experience and tips in the crypto space for free. I'm waiting for you in the community, always online, welcome to discuss and improve together. $ETH $XRP $SOL #粉丝代币板块普涨 #SUSHI2025产品路线图 #美财政部称BTC“数字黄金” #美财政部称BTC“数字黄金”