Sorry we have no prove that your account had the badge. There is nothing we can do in that case.
There is no way to loose it in the database without...
This won't happen and has nothing to do with TS5 at all (removed T5 Beta from title).
Anyone who was involved in a chat only should get the messages...
You are not able to update because you use the unofficial package.
What you could do is to install the client with our official installer and update...