It's been available since November.  If you have paid for it, you can download it anytime from your Intuit account.  If you haven't paid for it, you need to contact Intuit to process the transaction.

There's an echo 'round here:

https://accountants.intuit.com/community/proseries-tax-discussions/discussion/2023-1040/00/286070

Slow learner.

Where do I send my payment?

Hi @laarni.p.gonzales 
You can call sales Monday - Friday, 6:00 AM — 3:00 PM (PT) to purchase or renew your ProSeries product at 833-298-9808. Here's how to contact ProSeries for help. 
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