Hover your mouse cursor over the ! button and read the message displayed there.
Your withdrawal has probably been flagged to be reviewed manually. If that's the case, you have to wait until they review your withdrawal.
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But the service fee was charged and paid due to the withdrawal time.
If the service was not done as advertised then it is wrong.

Hi!
During my attempt to withdraw using the instant method, it charged me the highest fee and has not yet completed the transaction. It has been more than 8 hours since the request and so far there is nothing in the block or in my wallet listing that this transaction will actually happen.