Hi @SteveFai
Check your spam/junk folders in the email associated with your thermostat as that's where it will have been sent. If you still can't find it, contact support.
- Go to Contact Us - Google Nest Help.
- Select a category / product family, and type in a brief description of the issue, then click "Next".
- Click "Other".
- If you're signed into your Google account, select the affected device from the dropdown. If you don't see the affected device listed or you're not contacting about a specific device, select "My device is not listed".
- If you're not signed into your Google account, you won't see the device selection dropdown.
- Enter the serial number of your device (if applicable), then click "Next step".
- If you're signed into your Google account and have open cases, you'll see these listed. If you're contacting about a different issue, click "Next step".
- If you're not signed into your Google account, you won't see this step.
- Review the available help resources, and if none resolve the issue, click "Next step".
- Under "Contact options", choose to get a phone call or chat with the team, depending on availability in your country.