If you would like to upgrade/downgrade your account, please signup again for your new account.
When prompted for your username/password, do not proceed. Instead, email us your new order number and username, and we will convert your account. A pro-rated refund will be issued on your previous order (pro-rated refund is only applies to the user who wants to upgrade from Unlimited to Unlimited DSL or vice versa).
You can also use this procedure to convert from a pay-by-download to an Unlimited account.