Bill Slayer · Utilities
Pass only
The bill has jumped and nothing about your household has.
Get the errors worth checking for, a request for your hourly meter data, a dispute letter, and whether the tariff suits you at all.
4
billing errors to check for
12
months of meter data to request
3
steps if it's refused
The Problem
Same house, same habits, a much larger bill.
Peak costs several times more
If usage is landing in the wrong band, the bill rises without a single extra unit being used.
Moved onto a tariff unnoticed
Tariff changes are notified in writing and easily missed, and the cost implications only show up later.
Meter clocks can drift
If the timing is out, usage just after the peak window can be recorded as though it fell inside it.
You don't know your own tariff
Most people can't say which plan they're on or when their peak hours run – which makes checking impossible.
What you get
Everything you need to check whether the bill matches the meter.
4 errors to check for
The wrong tariff applied, a mismatch in the peak window, meter timing drift, and bands stacked incorrectly – with what evidence each one needs.
Meter data request
A written request for twelve months of hourly usage data, which is what lets you compare your actual pattern against the split you were billed on.
Dispute letter
Naming the specific error, citing your tariff terms, showing the mismatch and asking for the account to be recalculated over the affected period.
Is this tariff right for you?
Whether time‑of‑use suits your household at all – if someone is home through the afternoon, a flat rate may work out better regardless of any billing error.
If it's refused
The supplier's formal complaints process, then the energy regulator or ombudsman where you live – with what to include at each stage.
Regenerate Anytime
Different billing period, new rate plan, additional months? Run it again.
How it works
From a bill that doesn't add up to a comparison you can send in 2 minutes.
1
Answer 5 quick questions
Your tariff, the billing period, your usual pattern of use, what changed, and who supplies you.
~2 minutes2
AI builds your dispute
Custom HTML with the errors to check, the data request, the dispute letter, the tariff comparison, and the escalation path.
~30 seconds3
Find your tariff today
Log in or check the bill for the plan name and the peak hours – you can't compare anything until you know what you're supposed to be paying.
5 minutes to begin4
errors worth checking before you pay
12
months of meter data to request
3
steps if it's refused
5
plan sections
Questions
Everything you need to know.
Where do I find my tariff?
On the bill, usually as a plan name or code near the account details, along with the peak hours. If it isn't clear, ring and ask which tariff you're on, when the peak window runs, and what each band costs – that's the information everything else is checked against.
Can I be moved onto a time‑of‑use tariff without agreeing?
In some places, yes, with written notice – and notices of that kind are easy to miss. It's worth checking what you're actually on rather than assuming it's the same plan you signed up to, particularly if the bill changed shape rather than size.
What is meter timing drift?
A meter's internal clock can gradually run fast or slow. If it's out by half an hour, usage just after the peak window ends can be recorded as though it fell within it. If your hourly data doesn't match what you know about your own routine, ask for the meter timing to be checked.
Would a flat rate suit me better?
It depends on when you use electricity. If the house is occupied through the afternoon and early evening, time‑of‑use tends to cost more; if it's empty during those hours, it tends to cost less. Worth working out separately from any dispute – they're two different questions.
How far back can a correction go?
It depends where you are – rules on retrospective billing corrections are set by the regulator and differ considerably. Ask your supplier what period applies and check the regulator's own guidance, since that's what the dispute letter should reference.
Reviews
Real bills, really checked against the data.
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