Welcome to the QuickBooks Community, Usman!

The number and the email address you use for registration are associated with your Intuit account. I'll share information about resetting your access, so you can receive a verification code again. However, please know that the QuickBooks 2006 version is a grandfathered plan, which means its online services are disabled, and that's more likely the reason why you encountered issues with the verification process.

Please refer to this article: Recover your Intuit Account if you can’t sign in.

If you need more assistance, feel free to go back to this thread. We're just around to help you again.

Good day

I am joining this conversation because it is pertinent to my problem. I am looking for a validation code for my Desktop version of QB Premier Accountant 2015. i realize that this is also a rather dated version but I have had to change hard drives on my machine. I would now like to open my QB company file but need the code. Nobody at Intuit seems to be able to assist with this simple task.

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This is not the impression we want you to experience in accessing your QuickBooks company file and that support hasn't been able to provide the validation code you need. It must be incredibly frustrating to face this issue without adequate assistance, HansW.

Without a valid validation code, it isn't possible to open your QuickBooks files since it is required to activate the software. If you've registered your QuickBooks with Intuit, you'll be able to retrieve your validation code by logging into your Intuit account. You can follow the steps below to retrieve your validation code:

1. Sign in to CAMPs using your product's credentials.
2. Then, look for the QuickBooks Desktop Premier Accountant 2015 version.
3. From there, click on the Products and Services and select Details.
4. Follow the onscreen instructions to retrieve your validation code.

We understand that you’ve already reached out to our support team. However, it's out of our technical support to provide one since it is an outdated version. You'll want to consider upgrading to a newer version of QuickBooks Desktop from within the program. You can check out this article for the steps and details: Upgrade QuickBooks Desktop Pro Plus, Premier Plus, or Enterprise.

To learn more about QuickBooks Desktop service discontinuation, you can refer to this article: QuickBooks Desktop service discontinuation policy.

Moreover, you can check out these references in case you encounter challenges when activating your product or experience common errors when using the program:

• Fix activation, license, and product numbers issues
• Verify and Rebuild Data in QuickBooks Desktop

We are just one post away if you need further assistance in accessing your company files or any QuickBooks-related concerns. We'll respond promptly with the necessary information and resources,  HansW.

@HansW 

Consider to purchase a newer version to open your company file (e.g 2016 or later).