There are two ways to enable remote access for Thinka support:

‍1) Using the Thinka Web Interface

1. Open the Thinka web interface.
2. Go to Settings → Remote → Remote access for support.
3. Click Start Remote Support Access.
4. Your Thinka will generate a magic number.
5. Share this magic number with Thinka support agent.

‍2) Using the Thinka Companion App (App Store)

1. Download the Thinka Companion App from the App Store.
2. Open the app and select your Thinka.
3. Click Remote Access to enable it.
4. The app will display a magic number.
5. After enabling access you'll see a number that you can send to Thinka support by clicking on 'Share with support'.

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And besides that, If you want to learn how remote access gets done on Thinka Z-wave please see here ‍