To top up your meter, you first need to load your electricity key or gas card with credit. You can do this anywhere you see a Paypoint or Payzone sign. You can find your local Paypoint here.
We recommend you read this article if you’ve just received your Bulb electricity key or gas card.
Once this has been topped up, pop your card or key into your prepayment meter with the gold chip on your gas card facing up, and press A to complete.