{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the specific reasons for refunding fees in blockchain transactions?","a":"Transaction rejection: If a transaction does not comply with the rules of the blockchain network, such as having a transaction amount below the minimum fee required by miners, the miner may refuse  to bundle the transaction. In this case, the transaction fee may be refunded to the sender."}]}],"pr":"84c20ee4934b22f801495cd5a3f86a03d72703cf57d671c8f770c777cbdffee5"}