Vouchers can be used to add money to your account and to add money to your pin number.
Vouchers come in different denominations and can be found at almost every location where you would be able to buy activation codes and pin numbers.
Once you have acquired a voucher simply go to the loginpage, log into your account and click on the button “Add Money to My Account.” You simply enter your voucher number, click submit and your account with be reloaded.