Help with Sophos Home Premium

Hi All,

I've not long updated my Mac to Big Sur and had to uninstall Sophos Home Premium.  I've tried to re-install it, however, I appear to no longer have access to my account/dashboard/etc.  I have tried password resets a few times, now they don't appear to be coming through (checked junk folder nothing their/received/etc).  I've tried to re-register my account, however, the email address is already registered (as I expected as its me!).

I don't have access to help features such as live chat and can't appear to figure out a way of getting in touch with Sophos via email, etc.,

How do I get the account back so I can re-install Sophos Home Premium? my product is still licensed until February 2021 at which point I plan to renew (or did!)

Thank you ...