Hi, Insurance groups were changed recently (ish), what seems a higher group could well be lower under the new system, when we bought our jazz 2012 EX CVT a few months ago we got a refund from our insurer as it was in a much lower group that our old Renault Modus 1.6 Automatic.
Why not get another email address, just for the information being sent to the new one, this will stop junk on your existing email. Once this is done go to some of the comparison sites to get quotes for insurance.