To pay an invoice on our website, please click on "Buy Now" then put in the amount you are paying in the "Price per item" box and click "Continue". Enter as Guest if you are not a PayPal user. Then fill out your email address for your receipt and click on "Pay by debit or credit card". Then you can complete your card details and your invoice is paid!
If possible, please send us a copy of the confirmation email so we have a record of the payment too. Thank you.