While waiting your response to Fiat Lux - ASIA's clarifying question, 080165. I'm also here to provide additional information about your concern.

You can visit our  official QuickBooks website to purchase or upgrade your software. Once you are on the website, you can select the version of QuickBooks you would like to purchase or upgrade to and follow the prompts to complete your purchase. Here's how you could do it:

1. Go to the Downloads & Updates page.
2. Click the standard setup link.
3. Select the country, product , & version (2023).
4. Click the Search button.
5. Hit Download to get a new one or select Get the latest updates to get latest release.
   
6. Restart your computer after installed successfully.

To activate QuickBooks Desktop for Mac, you will need to have your license and product number ready. You can find these numbers on the packaging or in the email you received when you purchased QuickBooks. Here's an article for more information: Learn how to activate or register QuickBooks Desktop after you install.

If you have any questions during the purchasing process, you can contact QuickBooks customer support for assistance. They will be happy to help you with any questions or concerns you may have.

Also, you can read through the subjects in our QuickBooks for Mac user's guide to learn how to manage your finances with QuickBooks Desktop for Mac.

Don't hesitate to post more if you have other questions about QuickBooks Desktop Mac. Take care and have a good one.