We bought the same software which is used by other bookmaker too, but developed features on our own since we have a license to modify the source code. I think at first sight it has many differences to our version. We have more languages for example, followed a few wishes for functions and had to fix some issues, so that company is delivering server capacity but not involved in any other parts anymore. This german user has nothing to do with us at all, as far I remember he were/is(?) working for the seller company of the software but I (probably all of us team members) don't know that exactly.
I can tell you via PM some other bookmakers using this software, but I wouldn't like to mention all our competitors in public.

Thanks for your feedback, we are working on that very hard.