Constant request for reactivation

I am on day 3 of this issue.

Every time I launch DraftSight, I am prompted to re-activate it.  Every Time.

I have filled in my email etc countless times, but have not received any email reply that allows me to complete my activation.

I have followed the flowchart on this website, emailed the "info@draftsight", and have posted several requests for help on existing threads here.  I have not received one single reply.

Yesterday, I gave up and downloaded / installed it on my Linux box just so I could actually get some work done, but it does not run at all in Linux; an extensive search online shows that it simply will not work on 64-bit Linux. (seriously?)

So here I am; 70+ dwg files to work on, and no way to get draftsight to work at all.

Can anyone please offer me any assistance at all?