Dubble payment

I am with Virgin Mobile for eight years and for the first time they are billing me for double payment. I asked for a new top up as the previous top up was at the end of three years and my phone went out of order. <br> When I did the new deal the operator did not tell me that I will pay one more month for the old top up and at the same time pay for the new top up. <br> <br> 02/02/2016 Payment 299.00<br> 03/03/2016 INVOICE(***) 299.00<br> 19/02/2016 Debit Note(Renewal Fee) 100.00<br> 02/03/2016 INVOICE(***) 598.00|<br> 02/03/2016 Payment 299.00<br> 03/03/2016 Payment 100.00<br> Current AMOUNT OUTSTANDING 598.00 <br> <br> My agreement with Virgin Mobile South Africa (PTY) Ltd is R299.00 per month. <br> <br> Virgin Mobile South Africa (PTY) Ltd just lost a customer as I was promoting that my son should move over to Virgin Mobile South Africa (PTY) Ltd. By word of mouth I will advice all my friends not to deal with Virgin Mobile.