What you wrote here is not very accurate, you said:
I have purchased KORD,KFLL,KDFW,KLAS and Cloud9 KLAX, F-104, F-4, and MB339. Since you no longer use Esellerate, and have not provided an
alternate method of activation, I feel that it is only right for you to refund the money spent on these products.
Which of course is wrong, since we clearly provided an "alternate method of activation", which has been announced on our forum in 2019, a couple of months before Esellerate shut down its servers:
http://www.fsdreamteam.com/forum/index.php/topic,21083.msg143746.html#msg143746This message has been sent to all registered forum users and, since you registered in 2012, you surely must have received it at that time. And, in fact, it seems you HAVE realized we DO provide an "alternate method of activation", since the very same day you posted this thread, you also sent an email to support, saying
"Hello, I received all my new FSDT product keys from SORACO, except for KLAS"
But, in that very same email, you also indicated your key for KLAS and, as explained above, an old Esellerate key CAN be activated on Soraco, because they recognize BOTH kind of keys so, you don't really need the new keys, although they might be easier to use, since they support offline activation too, which can be required if your firewall is blocking our software to access the internet ( when it doesn't, the activation is entirely automatic, even with an OLD key )
So I checked your old key on Soraco, and saw you HAVE successfully activated it the same day you posted this and wrote that email ( Jan 21th ), so I assumed you were all set, when FSDT products are concerned.
However, I also replied to that email this morning, saying we ALSO associated your email to the missing key for KLAS ( the one you bought from FS Pilot Shop ) so, in case you'll lose your key, you will now be able to retrieve it from the Soraco Self-Help site using your email AS IF you purchased it from FSDT.
So, when FSDT is concerned, I believe you have been serviced just fine, including the product you bought from the bankrupted site.
About Cloud9, that's an entirely different issue, which has been already discussed several times on this forum, which I also explained to you in my today's email:
At this moment, there's no way to activate Cloud9 products right now, because they should have signed with a new ecommerce provider after Esellerate closed in 2019, but since the former Cloud9 owners have quit the flight sim business more than 10 years ago, they surely haven't done that. Because of this, is not even possible to buy Cloud9 products now.
We have been trying to get hold of former Cloud9 owners, to ask permission to do something about, like automatically activating everything with no key, but haven't got any reply so far.
So yes, I kind agree that, when Cloud9 products are concerned, you should ask Cloud9 for a refund and, if you can get hold of them, I'd be happy to know how you managed to do that...