From Lunarpages Web Hosting Wiki
All billing is handled at Lunarpages automatically using the billing method you have on record for your web hosting account. If your billing method (such as PayPal, credit card, ect) have not changed, you have nothing to worry about. You will not need to do anything unless you need to change your payment details or cancel your account. All accounts are set to auto renew as per the terms of service.
Please see our Terms of Service:
Wish to Cancel or Change Billing Method on Record?
If you do not want your site to be auto renewed, you will need to send an email to email@example.com requesting a change or put in a help desk ticket. You will then receive an email before your account expires and you must make arrangements to pay the account.
If you would like to cancel your account, please check this previous wiki post:
Was Your Hosting Account Billed Early?
You can always review your bills (paid for and due) on the Customer Account Page:
Just click on the "Pay Bills" link at the top, and you can review all of your bills in our records. Bills that are due will show up with a Bill Status of 'Due', marked in red, and will automatically be selected/checked for payment. You may also pay any other bills ahead of time by selecting them as well.