Give a brief description of your issue about validation code and click the Search button.From the search icon, type Contact Support.This is also the quickest and most secure way for you to find answers and get next-level assistance. This is to ensure you are routed to the right QuickBooks team. That's the reason none of the phone numbers are working. On the other hand, QuickBooks Desktop support recently changed the way to contact them from phone to messaging. Once done, you can click this article to see steps on how you can move your company file to another computer: Move your company files to another computer. Before that, make sure you already back up your company file in QuickBooks Desktop for Mac and then, restore it to the trial version. To start with, I'd suggest installing a trial version so you can start moving your QuickBooks data for MAC to a different computer. Since QuickBooks Dekstop 2016 is already discontinued, you'll need to upgrade your QuickBooks Desktop for Mac to the latest version of QuickBooks. I’ll jump right back in to assist further. If there’s anything else I can help you with, click the Reply button and post a comment. This article contains some links on how to help get started with QuickBooks: How do I? Once you have the information handy, let's go ahead and activate the desktop program. Choose Search to display the support details.Tap the Search for something else link and then enter the issue/topic in the field box.Press the Contact us link to view the Learn and Support page.These actions will open the Have a Question window.Tap the Help menu at the top to choose QuickBooks Desktop Help.They can access subscription information in a secure space and extra tools to generate validation code. Since we truly value the security of your business, I recommend you get in touch with our Technical Support Team. To get the validation code, we’ll have to collect sensitive data to pull up an account. Glad to see you here today, aboard to the Intuit Community.