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Switching to Bulb on top-up (prepay)

Coronavirus update (last updated 25 March 2020):

Due to supply shortages, we aren't sending out Bulb electricity keys right now. Gas cards are being sent as usual.

This means when you switch to Bulb you won't be moved onto our tariff straight away. It'll take up to 6 top ups at the same store on different days before you'll start paying our tariff rate. Until then, you'll pay your previous supplier's rate.

Once the tariff is updated on your key, we'll calculate the difference between what you paid on your old supplier's rate and what you would have paid on ours. If it turns out you paid more because of this delay, we'll refund you the difference and send the money by TransferWise.  

Joining Bulb

When switching to Bulb on a top-up (prepay) meter, it’s worth knowing a few things to ensure your switch goes smoothly.

If you have smart top-up meters (prepay meters that let you top-up online or using an app), you can't currently switch to Bulb. But we’re hoping to support these soon - sign up to our waiting list and we’ll let you know when we’re able to switch you.

When to start using your electricity key

Before switching over to your Bulb electricity key, you should first use up all the remaining credit on your old supplier’s key. Once you use your new electricity key, this will wipe any remaining credit from the meter.

When to use your gas card

For gas, you can swap your card at any time. Doing so won’t wipe your remaining credit, so you can pop your card in your meter as soon as you’ve topped it up.

It’s worth hanging on to your old gas card because your gas meter is able to recognise two cards, and you never know when it’ll come in handy.

Remember to check your meter screens

Be sure to check your meter in case there are some charges that you’re not expecting. For more info on this, check out this help article on unexpected payments.

If you haven’t topped up in a while, your gas meter may take some of your credit in order to pay the standing charge you’ve accumulated.

Don’t worry about debt from previous tenants

If you’ve just moved into a property and there is existing debt on your meter you should let your current supplier know. They’ll be able to wipe this for you, but they may need to see a letting agreement as proof of tenancy.

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