You need to be at your meter to enter the tokens.
You will receive 3 tokens to complete the Meter Upgrade process:
Token 1 - Upgrade Token 1
Token 2 - Upgrade Token 2
Token 3 - Test Token
You can contact the call centre via Live Chat anytime using the chat button on screen.
If STss is not your prepaid meter provider, please contact your own Prepaid Meter Provider as STss cannot assist you with the Key Change Tokens for your meter.