Paid for full service AND audit defense. Taxes rejected in Oct. Working with Andrew but website just defaulted me to 2022 - how do I get back to 2021 full service

Sorry but you are now too late to use "Full Service" for a 2021 tax return.   The deadline has passed for that.  The only way to complete a 2021 tax return now is to use the desktop software for 2021 on your own computer, and then to print, sign and mail the return.

 You will be able to access the return you started by using the exact same account and user ID that you used when you started it.   But you can no longer use online software for any further changes.

Online tax preparation and e-filing for 2021returns is now permanently closed.

Now it is too late to use online software or to e-file. If you have any changes/corrections at all to make to your 2021 return, you now have to complete it using desktop software, which you must download to a full PC or Mac  (not to a mobile device).Then you need to print, sign and mail it.

https://ttlc.intuit.com/questions/2559403-how-do-i-finish-a-prior-year-return-that-i-started-in-turbotax-online

If you already paid for your online software you can ask customer support for a download of the desktop software.

They are available from 5 a.m. to 5 p.m. Pacific time Monday-Friday.

https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number

If you are getting a refund, there is no penalty for filing late.  If you owe tax due, then file and pay the amount due as shown on the Form 1040, but expect a bill later from the IRS for the penalty and interest you will owe.  Only the IRS will calculate this—TurboTax will not calculate it.

When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s.  Use a mailing service that will track it, such as UPS or certified mail so you will know the IRS/state received the return.

Federal and state returns must be in separate envelopes and they are mailed to different addresses.  Read the mailing instructions that print with your tax return carefully so you mail them to the right addresses.

You will probably not get help from a tax expert until they return to work in January.  December is normally not a working time for them.  But call customer service and see if they can get you to an expert for help with the 2021 return.