Old license? Cannot activate...

I bought Scrivener a number of years ago, and have not recently used it. Went to set it up again, downloaded, recovered my serial number - but the installer will not accept my serial number, says it is not valid / not valid for this version?

Any help appreciated. Whether I can just download old version it does work for, or if there is an upgrade option, etc. Not finding much, nor does the email and such tell me what version my serial is for.

How can I contact Scrivener to ask my questions?

You can open a support ticket, here: