I appreciate you for joining the thread, @19452. Let's work this out so you can proceed to get a validation code for your QuickBooks Desktop (QBDT).
Before anything else, know that I understand the urgency of this matter. As much as I'd like to help you get through this, you'll want to reach out to our Customer Care Team so they can help you get a working Validation code for your QuickBooks product.
Since you can't access your application, you can visit this page to speak without representative outside QuickBooks: Contact QuickBooks Desktop support.
In addition, here's an article to help set up your company file: Get started with QuickBooks Desktop.
You can also visit this page to help you manage the payments you receive in QBDT: Take and process payments in QuickBooks Desktop.
It's always a pleasure to have you in the Community, @19452. You can also post here again if you have any additional QuickBooks-related concerns. I'll be here, ready to help you. Take care, and have a nice day!
