I would like to pay the Turbo tax fee before Feb. 28 to get the discounted price, but I don't want to file until later. How do I do that?

go to the Print Center and try to print your tax return.

You can pay early before you file to lock in a discounted price.

How to pay,  use this FAQ on how to preview your return.  It will make you pay if you say you want to print now.

https://ttlc.intuit.com/questions/1901539-how-do-i-preview-my-turbotax-online-return-before-filing

I filed my return on 2/24/23 and was invoiced $89 for Turbo Tax Premium. Was I eligible for a $30 discount?

We are unable to see if you would qualify for a discount in this public forum. 

Please give us a call here so we can look into this. @jrgill47