Your monthly payment is designed to make budgeting easier. It’s based on an estimated annual energy allowance, spread evenly over 12 months, and then adjusted if we learn that your situation or usage has changed.

We track usage using smart meter data (where available) or the meter readings you submit. Submitting regular readings helps keep your payments accurate.
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If you’ve received an email about a payment increase, it will usually be for one (or more) of the reasons below.

Sometimes a property is originally set up as dual fuel (gas + electricity), but we later identify that it’s actually electricity-only (for example, we can’t find a gas meter at the property or we can’t confirm a gas connection).
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When that happens, we update your account to reflect an electricity-only property.
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Electricity-only tariffs are usually a bit more expensive than dual fuel. This is mainly because electricity generally costs more to supply due to wholesale pricing, network costs, and environmental levies.
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Because the tariff is slightly higher, your monthly payment may need to increase to match.

Once we update your home to electricity-only, you may see some or all of the following:

Depending on when the change is made, we may need to “catch up” your payments to what they would have been if your home had been set up as electricity-only from the start of the contract.
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Catch-up payment = (what you should have paid) – (what you have paid so far)
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This is calculated based on the difference and how long the account was set up incorrectly.
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If your property has a gas supply, please send us:

Once we have this, we can check the meter serial number and investigate further.

Your home is set up for a certain number of people to share the bills (for example, based on the household size expected at sign-up).
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If fewer people have completed their Bunch registration than expected, we have to split the bill between the people who are currently registered. That means each registered person’s share can be higher until everyone is signed up.
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If the same total household costs are being split between fewer registered bill payers, your portion temporarily increases.
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Once the remaining housemates complete registration, your costs will rebalance automatically, because the household bill is then split across the correct number of bill payers.
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Your initial monthly payment is based on an energy forecast that takes into account things like:

This creates an energy usage allocation (an estimate of how much energy your household is expected to use across your contract). It’s a forecast – not a limit.
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If your household is using more energy than expected, your payment may increase to cover:

This helps avoid a large balance building up on your account and a big bill at the end of your contract.
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We review usage regularly and we’ll let you know if anything changes.
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Your Customer Portal includes an energy usage graph:

If the blue bars are consistently much higher than the orange and it doesn’t look right, contact us so we can investigate.
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If your property isn’t fitted with smart meters, we may need to use estimated readings based on industry data.
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To keep things accurate:

You may see figures such as:

If the “meter reading status” shows as estimated and you think it’s off, the quickest fix is usually to submit a current meter reading.

If the updated payment amount is difficult, you can request an affordability review. We’ll provide an income and expenditure form for you to complete.
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We can also be flexible with payment dates if you need a bit more time to review the change — just message us.

Reply to the email you received or contact us in chat with any relevant details (for example: a meter photo, updated housemate info, or anything you think looks wrong). We’re happy to talk it through and make sure everything is set up correctly.