I've never been able to update my Carminat TomTom. But now the differences between the roads and the old map are getting more noticeable. I've downloaded TomTom Home and found that I can buy a new map, but the system won't accept payment of any type. I get a rejection message for every card and for Paypal. It's not a problem with funds. Is it possible to update the map for such an old satnav?