I'm not giving up on this issue, and I've got some troubleshooting to help you access the Receipt Management feature, @BB2020.

The first error message you've received might be because the file was read incorrectly on a Windows computer. Follow along below to fix it:

1. Close all the open programs on your computer and then restart.
2. Look for the QuickBooks Desktop icon and right-click. 
3. Choose Run as the Administrator. 
4. When done, attempt to access the Receipt Management feature again. 

For the second error, let's reset your Intuit log in settings. To do so, refer to these easy steps below:

1. Go to the Help tab and choose Reset Intuit ID Settings.
2. Type the word YES in the confirm field.
3. Hit OK.  
4. Once done, navigate to the Company menu.
5. Select My Company.
6. Click the Sign in button. 
7. Enter your Intuit credentials, then tap Sign In. 
8. Once finished, access the Receipt Management feature again. 

Then, since Community is a public forum and we don't want to endanger your security or privacy, I highly suggest reaching out to our QuickBooks Desktop support team again to further verify your multiple Intuit account. They use specific tools to pull up and check your account details. They can also share options for actions you need to take.

Let me walk you through the process:

1. Click the Help menu at the top, and then select QuickBooks Desktop Help. 
2. Hit Contact Us.
3. Enter a brief description of your issue, for example, Multiple Intuit account. 
4. Tap Let's talk. 
5. Choose Start a chat. 

Also, I've added this helpful article the help you to manage your QuickBooks Desktop using your Intuit account ID: Create or open a company file using your Intuit account ID. 

If you have further questions about using the Receipt Management feature in QuickBooks, please comment below. I'm always around here to provide another set of solutions to ensure your success. Have a good one.