Tamar Telecommunications Invoice Payments When you click next, you will be directed to WorldPay who will take payment on our behalf. Once you have completed payment you will receive a confirmation e-mail both from ourselves and WorldPay. The payment page is now mobile friendly and may look slightly different to when you used it last. Account Number: Company / Individual Name: Invoice Number: If you have two or more invoices to pay please enter just one of the invoice numbers. Total Amount: (£) Enter the total amount due for all invoices you wish to pay. E-Mail Address: