Hi Joy,
I believe that code is for the Quick Assist however that code is only valid for 10 minutes.
The best action to proceed here is to reconnect with Microsoft support and provide your case number that was provided by your previous support agent, and when they check the documentation of that case number, they should be able to pick up where you left off.
To contact, you may refer to the steps below:
- Go to this link: https://support.microsoft.com/contactus > click Windows
- Select Get Home Support
- Tell us your problem so we can get you the right help and support > get live agent windows support > Get help > a helpful links will show but just scroll down until you can see Sign in to contact support (if not yet signed in)
- For Products and services: Windows
- Category: Technical Support > Confirm
- Then select Chat with a support agent in your web browser
- Confirm your account and you should be routed to Microsoft support representative who have the appropriate tools to assist you further.