Thanks for reaching out to the Community, @Abie059. I'll share details about the difference between the two QuickBooks programs.
QuickBooks Online (QBO) is a different program from QuickBooks Desktop (QBDT), and each of them has a separate way subscription. Thus, you cannot use the subscription you purchased for QBO to change it as a license for QBDT.
Also, QBDT is currently offered in the US region. For more information about this program, together with the complete list of functionality that is available in the system, please see these links:
For more details about subscribing, changing your subscription, or just viewing your billing history in QBO, refer to this article: Update billing, payment, and subscription info in QuickBooks Online.
If you have additional questions about managing your QuickBooks account. I'm always around to lend a hand. Stay safe!
