You should call the IRS at 1-800-829-1040 as soon as possible to advise them that you provided an incorrect address on your return, so as to expedite the processing of your refund check.
The IRS should be able to process your change-of-address information over the phone, but if they can't, see the TurboTax Help article "How do I change my address with the IRS?" for guidance.
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