I would like to inform you that the reason we are incapable to access update and sign up for the map update service could be for the reason that you are using version 9 of the browser.
Version 9 Web browsers is not well-suited with the TomTom website, so you will not be able to update your device via using the latest version of Internet Explorer.
Therefore, to solve the problem please, change to a previous version of Internet Explorer to update the device.
Please accept our apologies for any inconvenience.
I would also like to inform you that have increased if the department concerned about the incompatibility of the TomTom website with Internet Explorer v9. We all received information very seriously in the future development of our products, therefore, we have passed your comments on our product management and marketing team