How do I give the TurboTax people right address and phone number because it changed since I filed

See this TurboTax support FAQ for updating your TurboTax account information - https://ttlc.intuit.com/community/account-updates/help/how-do-i-update-my-turbotax-account-information/01/25927

If your current address is not the address on your filed 2020 federal tax return then you need to change your address for the IRS.  Go to this IRS website for a change of address - https://www.irs.gov/faqs/irs-procedures/address-changes

Make sure you have updated your new address with the US Post Office - https://moversguide.usps.com/mgo/disclaimer

You will need to change your address with the IRS.   You do not do that through TurboTax.   TurboTax does not send in anything to the IRS after you file your tax return.

CHANGE OF ADDRESS 

https://www.irs.gov/faqs/irs-procedures/address-changes/address-changes

Make sure your mail is being forwarded by the post office, too.

To update your TurboTax account  (but remember this does not go to the IRS after you filed)

https://ttlc.intuit.com/community/account-updates/help/how-do-i-update-my-turbotax-account-information/00/25927