The cryptocurrency mining platform Antpool released an update on Nov. 30, saying it will refund the gas fee of 83 Bitcoin (BTC). 

It said its risk control system temporarily froze the fee when packaging the transaction, and therefore, after the affected user verifies their identity, it will refund the fee.

The affected user has until 00:00 (UTC+8) on Dec. 10 to submit their details to Antpool via preparing a signing tool, either Electrum or Bitcoin Core, and then using a private key of a wallet address given by Antpool sign the message with the code “AntPool.”

On Nov. 23 one Bitcoin user on the platform was charged a gas fee of 83 Bitcoin (BTC), which at the time equaled roughly $3.1 million, for a transfer of 139 (BTC).

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