Received an email today telling me that my auto-renewal had failed and inviting me to click on links in the email to rectify the situation.
As a rule I don't follow links in unsolicited emails even when it appears to be from someone I do business with. In this case you're also dealing with a third party reseller so there's an extra layer of suspicion. So I log into Bitdefender Central to manually renew the sub (I suspect that the problem is we have moved so the billing address doesn't match the address for the payment card). THERE IS NO WAY TO CHANGE YOUR PAYMENT DETAILS OR METHOD WHICH CAN BE ACCESSED FROM BD CENTRAL! There is also no way to manually complete the transaction other than to follow the link and enter a new payment method into a one-off third party form.
There seems to be a complete disconnect between the Bitdefender service (which is great) and the reseller (which stinks).