To get to the stimulus questions in TurboTax at any time, you can search for stimulus or recovery rebate credit then hit ENTER and there should be a Jump to link
If you are trying to trigger it,
Click on Other Tax Situations at top
Click on Let's get started
Answer some questions then Continue
Then click on Let's keep going
Next screen is for the Third Stimulus, if you qualify
If you did not get prompted to enter your stimulus information, that means you either:
Filed as a dependent being claimed on another tax return, or
have an AGI too high to claim the recovery rebate
So better double check your AGI. Do you have any dependents? The 3rd Stimulus is 1400 per person. So for Joint it would be 2800. Why do you think it should be 3,000?
If you got the credit on your 2020 return you should have received the 2021 stimulus payment. Double check your bank accounts and check your IRS account (both if married) to see if the IRS sent you any.
https://www.irs.gov/payments/your-online-account
