Did anyone made a mistake on the bank account and fix it after the refund was issued? My bank account info is correct, but I no refund yet, and it is been issued.

No, once your tax return is submitted and accepted, you can't change the direct deposit account for the refund. 

In a case where the direct deposit account is closed, or wrong, the refund will bounce back to the IRS and they will issue the refund again as a mailed check, which will be sent to the address on your tax return.