Paying your bill

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How to pay your bill

Paying by Direct Debit is the easiest way to pay, please contact us and we can set this up for you, alternatively you can pay at a bank, send us a cheque, pay by credit or debit card, or send a payment via BACS. See below for details. 


Credit/Debit card

Please call 0800 012 4510. You will need your account number and your card details. There is no surcharge for a credit or debit card payment. Unfortunately we cannot accept American Express for payments.

Other ways to pay

Cash - You can pay with cash at your bank or building society using the Giro slip on your bill, or at the post office by using the barcode printed at the top of the last page.

Cheque - Fill in the Giro slip on your bill and along with a cheque payable to 'Green Star Energy' take them to your bank or building society. Alternatively you can post them to Green Star Payments, Elder House 3rd Floor, 586-592 Elder Gate, Central Milton Keynes, MK9 1LR.

BACS - For BACS payments, please use Payee: Green Star Energy Limited, Sort Code : 40-33-33 Account number: 72409364 and your Green Star Account Number as the reference, this can be found on your bill. 

Direct Debit - Please complete a Direct Debit Mandate and send a copy to us at or call us call us on 0800 029 1560 to set up a Direct Debit over the phone. Alternatively, you can post it to us at Green Star Energy Operations, Elder House 3rd Floor, 586-592 Elder Gate, Milton Keynes MK9 1LR. Click here to download and print form.

Post Office - We now offer Post Office payment cards, so you can make regular payments at your local post office. Please contact us if you would like us to have one posted to you.

Pay as you Go - Sometimes the easiest way to manage your payments is to have a prepay meter fitted. Please contact us if you would like to arrange for us to fit a prepay meter. There will be no charge if we undertake this work at your request, although you will need to move to one of our prepay tariffs.

Understanding your bill


Why is my bill so high?

  • If your bill is higher than you expected, it may be due to one of these reasons:
  • Is it an estimated bill? If you haven't given us a meter reading recently, we may have estimated your bill. We will adjust your bill if you provide us with a meter reading within 14 days.
  • Are there more days in this bill period? It may have been a longer month or there may have a bigger gap between meter readings.
  • Have you got a balance brought forward? If you didn't pay your bill in full last time, the remaining amount will show on this bill
  • Have you recently changed tariff? If the tariff you were on has ended or you've changed tariff your bills are likely to change. We'll contact you when your tariff is coming to an end to discuss your options
  • Has there been a price increase during the time of the bill? If energy prices have gone up this may have affected your charges
  • Are you using more energy? If you have more people at home, have bought some extra appliances or if it's got colder, you may simply be using more gas and/or electricity
  • Have you had your appliances checked or serviced recently? An old inefficient appliance will use more energy, and may need to be replaced
  • Was your recent meter reading wrong? If we read your meter or you sent us a meter reading, there's a slight chance it may have been wrong. Submit another meter reading online. Simply click here to access the online portal, log into your online account, and follow the instructions you find there

What should I do if I can’t pay my bill?


If you’re finding it difficult to pay for your gas and electricity, we are here to help. Just give us a call and have your account number and an up-to-date meter reading to hand. We'll take into account your circumstances so you'll need to tell us about your situation. 

There are lots of ways that we can help you to manage your energy payments, including:

Direct Debit – Set up a Direct Debit to ensure you never miss a payment and get a discount on your bill.

Restructure your payments – spread your costs into regular instalments..

Installing a prepayment meter – Pay as you go for your energy with a prepayment meter.

Fuel Direct scheme – We can check if you can get help from the UK Government’s Fuel Direct scheme and take payments directly from your benefit pay. Find out more about Fuel Direct here

Energy saving advice – Find out how to save energy and money by visiting our energy conservation page here.


So, contact us today and find out how we can help.

Find out more



What if I think my bill is wrong?

Write, e-mail or call us at:
Green Star Energy Customer Services Department Elder House 3rd Floor, 586-592 Elder Gate, Central Milton Keynes, MK9 1LR
Landline: 0800 012 4510
Mobile: 0330 088 1619

But remember to include the full name of the account holder, your address that you are enquiring about, your account number and a brief description of the problem.


Green Star Energy is a trading name for Hudson Energy Supply UK Limited. Registered in England and Wales. Company number: 07489042. Registered address: Elder House 3rd Floor, 586-592 Elder Gate, Milton Keynes MK9 1LR. Full company information can be found at Companies House.

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