How can I pay for an upgrade from Brunei?

How i can pay iam in brunei can i bankin but witch bank can ia transper

You can pay by Debit or Credit Card. Don't you have one? We offer Wire Transfer payment if you prefer to do that:

https://www.jotform.com/help/354-How-to-Upgrade-and-Pay-by-Wire-Transfer 

Note that you must strictly follow the Wire Transfer Order instructions. We cannot upgrade the account until the payment is cleared.